I came across a post that says X5 Leopard v1.00 For Sony PSP™ is Coming Soon!
Overall Concept
1.) New Mac OS X v10.5 Leopard theme.
2.) Better documentation for easier installation and customization.
3.) Every GUI file has been modified and optimized.
4.) Online infrastructure has been changed for better management.
5.) Source code has been optimized and is now XHTML/CSS certified.
6.) Unified source code for easier user customization.
Links:
X5 Leopard For Sony PSP
Official Website
Anyone heard about this?