What I like:
- Easy RSS feed addition
- OPML file import/export
- Interesting widgets built in (calendar, Gmail, clock, to-do list, Digg feed, calculator, notes, bookmarks, full browser, search, video, etc.)
- Beautiful default look
- Drag & Drop windows, lock 'em down, change opacity, colors, etc.
- Publish your "minis" or your whole tab of minis.
- Social feel. Very Web 2.0.
- Multiple tabs
- Inline web browser makes loading a news story convenient
- The ability to load any image as my tab's background
- Is Flash going to be too heavy for my browser's start page?
- Are more interesting widgets coming?
- Do we need another widget platform? Can't we all just get along?
- Will we be able to further customize the look of our minis, or the basic mini windows?
So far, I really like what I see. It feels more polished to me than Netvibes or Pageflakes. They apparently have over 800,000 users so far, which is not bad, but still lags behind their competitors. But I still question the use of Flash...it's a great tool, but there are many people who would prefer to stick to standard HTML for a much lighter weight start page. We'll see!