I did love this handheld a lot. It really got me through some boring as fuck shifts. Riiiiiiidge Racer and Pixel Junk Monsters are the best.

The battery mod involves a new back casing called Power Armour that lets you put in the bigger Vita battery, and there is a PSP memory to Micro SD ribbon cable that slides in the back. Only downside is the memory card can't be removed without taking the back of the system case off, but I pretty much know what PSP games I want at this point. Might be my favorite form factor of all handhelds, its just so tiny.