Sony should really look into having 3.0 support GameTap. GameTap is a service that legally lets you download old games like Golden Axe and Sonic 2, at a small fee (around $15 or £10 a month). If the PSP had support for downloading retro games like these, I'm sure many people would update. A big reason people aren't upgrading is because of emulation, but full-speed legal versions would likely be a great alternative.
Emulation is the only reason I haven't updated, but I'd gladly give it up for a sevice like this, allongside the Web Browser and Location Free support.
Waht do you think?