Hacker News Reader

I'll start (based on what was passing through Forrst and HN) -

http://www.wuala.com (not 2010, but still good)

Only app I spotted on that list was http://www.coolendar.com/ Seems to be hosted on google app engine. Nice example of simple design that does one thing very nicely.

The rest looked like brochures. Not nearly as impressive as a functional app with a good UI.

I really liked this one, for example.

http://www.cmap.illinois.gov/

It looks good but there are some bad choices in my opinion, like having transparent menu backgrounds. It decreases readability, for example on the menu "GO TO 2040", "Regional Mobility" merges with the background and it becomes hard to read.