I saw a bunch of cool startups at PC Forum. My fave was SpotRunner. Just a brilliant business idea: Resell leftover TV advertising spots to local small businesses.
I had to reverse my initial opinion on Bitty Browser. I went from perplexed to "this has potential."
Most eagerly-awaited launch: the photo search service Riya. I saw this company at Demo, too. See video. Still waiting to get my hands on the beta!
All my writeups are on the CNET Alpha Blog. There is complete coverage on CNET News.com.