Globware have updated their awesome game for the PSP, heres the info:
I'm creating a public beta for v0.8.2 of Squarez to help test the new multiplayer features.
New Features from v0.8.1 to v0.8.2
* Control Layout options. In this beta, DO NOT use the L1 key and DO NOT change R1 keys. They are currently being used internally.
* Updated pause menus.
* USB Mode - allows you to connect to your PC and transfer new themes, backgrounds etc. Make sure you press Triangle to re-load squarez data if you add new Squarez related data.
* Added Multiplayer using IR port and WIFI Access Port (infrastructure mode)
* Features True collision detection for sprites which are not squares.