Don't look now, but new details have emerged for Kingdom Hearts 358/2 Days for the DS, and Kingdom Hearts: Birth by Sleep for the PSP. The info was posted by Japanese gaming blog Apocalypse, which in turn based its information on a game mag.

Here are the new details that were unveiled (quoting Kingdom Hearts Insider):

• Birth by Sleep
• A finisher attack technique called "Shock Lock System" appears.
• Screenshots of Ven and Terra are shown, but there is no new dialogue.
• Release date: TBA
• 358/2 Days
• Screenshot: Axel saying "How many times do I bring them back?"
• Screenshot: Namine saying "Surely she is unable to endure it."
• The members of Organization XIII are assigned missions.
• Release date: 2008
  

Admittedly, there's not much other information to go on at this point, especially given that the Apocalypse blog is currently down (as of writing this article at least). The dialogue snippets for 358/2 aren't telling us much either, though they make for quite a teaser. This is all the info we've got for the moment - visit us again in case we run into any further details regarding this matter.