New features include:
-All new “Aqua” and “Dark Aqua” look.
-Several fixes for the “Out of Memory” problems.
-Updated source code.
-Redesigned standard 12 hour digital clock.
Due to time restrictions, some more major features such as ‘iTunes’ and ‘iPhoto’ software, which were originally ETAed for the 1.5 release, will rather be incorporated into X5 via a downloadable ‘Software Update’ (through the control panel in X5) as soon as it is ready to be released.
This web portal works with all 2.0 and higher firmware PSPs.
You can get the portal by heading over to http://x5.psp3d.com/ although the site is having heavy traffic right now.
I personally still have a 1.5 PSP due to the fact that I am a homebrew freak. This is the ONE application that has made me debate upgrading to 2.0 as everyone I have talked to loves it. If you have 2.0, I highly recommend downloading it and checking it out.