Here are all three parts of the interview:
Kingdom Hearts: Birth by Sleep
Interviewer: So what about the development of Birth by Sleep?
Nomura: The developer of re:COM will be working on KH:BBS. During Development, the production of KH:BBS was stopped, for the production of re:COM. At first it felt a bit weird starting the project again. I believe this project started before the other two, of the three Kingdom Hearts games, and I also believe it will be the last to hit the market.
Interviewer: It still relates to Birth of Sleep? (KH2 FM+'s secret ending)
Nomura: The Secret Ending, is an image for a scene in BBS, therefore the title of the game is also the same. However because it is difficult to express a violent battle as a playable content, The Secret Ending, is an image to the end. (Is he hinting that this is how BBS will end or something else?)
Interviewer: How much talk was put into it, for this, as it seems to be the past to the "KH" series?
Nomura: The game is the farthest in the past timeline of Kingdom Hearts, and will take place 10 years prior to the KH series. There is a screenshot of two children playing on the beach and I believe the fans can understand what that means.
Interviewer: In the story it's said that "Three Scenarios Spilt by Three Heroes". Is there a relation between each scenario?
Nomura:: There are three Heroes, Terra, Ven, and another character in KHBBS. A story is already prepared for all three of them. Therefore, in a way, you can say three games were made at the same time. (Laughs) It's difficult to zap through the explanation right now due to scenario creating. However the beginning will be a bit hard to understand but by completing all three scenarios you will understand the entire story.
Interviewer: Do the names of the three heroes represent something?
Nomura: In Kingdom Hearts, Sora meant sky, Riku meant land, and Kairi meant sea. In this game, the three meanings make a large impact on the game.
Interviewer: Are all three scenarios happening around the same time?
Nomura: All of the Scenarios do occur around the same time; however, there are also some gaps between the timelines. Also there are times when all three heroes will meet.
Interviewer: Is the playing order decided yet?
Nomura: I believe it would be better if we gave the players a freedom of choice. However this is still being talked about but I believe it would be better to choose whoever you want out of the three.
Kingdom Hearts: 358/2 Days
Interviewer: Is the beginning of 358/2 Days going to focus on Roxas' birth?
Nomura: The part of his birth will be shown as the prologue; however, the game really starts from when he enters Organization XIII.
Interviewer: Will this game have an already predicted ending like that of Crisis Core?
Nomura: Where do you think the end is? The point is, how did it get to where it ends, for Roxas to leave the Organization? The detail of that will be in this game. (Pretty much, we probably already know the ending. We just don’t know how we got to that point.)
Interviewer: Does the progress of the story mean going through Disney Worlds, just like previous Kingdom Hearts games?
Nomura: It's not entirely a story that progresses by going to other worlds but stories will be progressing.
Interviewer: Is the 14th member a new character of the KH Series? It appears as though the character is...a woman?
Nomura: I should bring it up now, that the XIV member is not Namine, since some people believed it to be Namine by seeing the trailer. However it will be explained as to why there's no pillar for this character, as well as why she never appeared in Kingdom Hearts 2.
Interviewer: In the trailer, we see 4 different playable characters simultaneously, is this possible?
Nomura: The Multiplayer can be done with 4 people or less. Not only is it a feeling of Multiplayer, it gives a feeling of freedom as well because multiplayer mode will have no relation to the story of the game. But it is possible to choose less then four for the multiplayer content if you wish.
Interviewer: What is the progression of Multiplayer?
Nomura: The point is basically to beat a given mission. For instance defeating an enemy or whatever the aim of the goal is. Various purposes range from small reasons to big reasons. There is a strong competing feeling for Multiplayer so sometimes the players may forget what the point of the goal is.
Interviewer: Is multiplayer mode possible for one player only?
Nomura This volume with Multiplayer mode was rather messy, so we had to design a leveling up system. For example, when Axel is used in Multiplayer mode, Roxas will gain some extra experience from this. Also you are able to customize your character freely. (Nomura-san didn’t go into detail about the customization system.)
Kingdom Hearts: Coded
Interviewer: The screen is horizontal even though the game is for the cell phone, why is that?
Nomura: This is not just the length screen but also a model screen specification for the most recent cell phones. It is what we assume the game to look like when it's released to the public. The method for the horizontal screen has already been talked about; it is a basic horizontal screen size.
Interviewer: Is the screen in 3D in case of Pseudo?
Nomura: The Background is 3D and the characters are 2D. The development of this game is still in progress and we plan to have the game both 3D and 2D. The reason is so that we can have the game available to a range of cell phones. The reason we developed this idea, is because we wish to send this game overseas.
Interviewer: What shape will the delivery form take?
Nomura: Unlike the situations in larger game development, we always thought the world of Kingdom Hearts could be made mobile. For instance, there is a huge amusement park and the main attraction is KHc (Kingdom Hearts Coded). It can be like an entrance to an amusement park, free of charge, allowing you to visit each world. That is the delivery plan of KHc. We plan on taking full advantage of the mobile phone.
Interviewer: Will the storyline be based on Sora's adventures in Kingdom Hearts?
Nomura: The timeline is based after Kingdom Hearts II, Jiminy's Journal is analyzed, and the adventure will take place in that. Therefore data of Sora will appear, not Sora. The world that was shown was a stage, though this was through the time of COM, and re:COM over the memory of Sora.
Interviewer: What will this game be able to do?
Nomura: This is going to be a puzzle game mixed with action. Data is being displayed and there are some bugs in Jiminy's journal. The area must be analyzed in order to find the bug that is violating the data and then you need to remove the bug. However, some may get a bit more confusing as there will be ladders Sora will use to get to higher areas.
Interviewer: When do you think this game will be released?
Nomura: You may have to wait a while as there are still some problems with the specs of cell phones for now. However we are not asking you to wait for 2 or 3 years.
Interviewer: Will these works be connected with the "New" KH game?
Nomura KHc features Sora, however, the DS and the PSP both are completely different stories, though I cannot say what they are yet. I can say these titles are not the last of the series and all three will connect to a new Kingdom Hearts game sooner or later.
Source: FF7AC Reunion for the original Japanese version of the interview and KH-Vids.net for the translation