Kingdom Hearts coded is an upcoming game in the Kingdom Hearts series that will be released on the mobile phone as a puzzle game using 3D backgrounds. It is an installment in the best-selling Kingdom Hearts series that focuses on King Mickey. The game was announced at the 2007 Tokyo Game Show. Currently, the title is only confirmed for a Japanese release, though Square Enix has plans for releases in other territories. Although its release may be halted since Square Enix said some of their mobile games have been halted, there were no names of any games though. There is a possibility that it could be released on the PSP.
From Kingdom Hearts Wikia
Set after Kingdom Hearts II, coded sees Sora, albeit in a digitalised form, embark on a new quest to find out the source of some text from Jiminy's journal
All new talk in here please
More info can be found in 3 new Kingdom Hearts games announced!