Summary: Finally some new information regarding to the EOJ PSP version. Believe or not, this apparently is the first official announcement regarding to EOJ PSP version in Japan.
Most are already known facts such as including story mode, no more physical cards etc.
Here is minimum, but some new information that was listed on the latest Famitsu Online site.
The official EOJ PSP release is scheduled in March 2010. (Not sure if only in Japan or worldwide)
There will be demo version that allows users to experience deck building and adhoc vs. play. This demo version is scheduled for release in January 2010.