I was thinking about it lately and you could just have Chain of Memories (2D Version) be a simple port to the PSP and have a little piece of paper with a code to get a free download from the Playstation store and (this is a bit of a stretch) they can try to tinker it so the saves games are compatible with each other so when you have to leave and you haven't finished Re:CoM you can take that save put it on your PSP and continue your game with 2D CoM i understand there might be compatible issues but it would be some what cool.
Why would you need both KH COM and RE COM when RE COM is 10 times the supieor of the GBA one. And 358/2 is not going to be being ported to any console anytime soon. I don't think the game would look good if it was blown up on a giant HD TV set.
If this collection is being made for the PS3, then only the KH games that were on PS2 should be included.
By this I mean:
And apples are for oranges and oranges are for apples (Random blah for the sake of randomenss)
Whatever would be in the KH Collection will surely contain games which were released on PlayStation systems. 2 of the titles expected would be KHI & KHII whether they be Final Mixes or not.