CSS support, tabbed browsing, Javascript – sadly enough, the new browser on the PSP is a better browser than my trusty Sidekick.
The revised text input interface is helpful, you can finally pick which tint for background you want (or set your own picture as a background), there’s WPA support so we can actually do secure wireless…all in all, I’m impressed with the 2.0 firmware, it’s a really solid upgrade – if only Sony weren’t being dicks about the homebrew stuff.
And before I get a bunch of questions about why we upgraded – I was already at 1.51, so I’m not losing functionality. Katie’s PSP remains at 1.5 so she can play her NES favorites.