Chrome

It's a pretty silly name, but Google's new browser looks good(ish) on first glance.

They really have done a great job with the UI, they've given every last inch to the page display (although I'm not sure about the incredible disappearing/reappearing status bar...). And it's really disconcerting not to have the familiar old 'File' menu option in the top right-hand corner! It makes it feel like some malware app that's trying to full-screen me into submission.

Btw, Picasa 3 (beta) is also out - do Google release anything past Beta at all these days? :)