Got 1 last weekend with linux installed.
Booted quickly, screen was surprisingly good to read. Changed from "easy" to "advanced" mode quickly which made it better (for me) to use.
It detected my wireless network better than my dell latitude laptop and I was onto the net quite painlessly. Took it to school and it connected there faultlessly as well.
For laziness and compatibility reasons, Ive now installed xp pro on it. That took about 2 hours, but I was very surprised how well it's performing - as in speed on boot and generally firing up apps.
Have installed office 2003 (not that I wanted to) and that's just fine too. Currently I'm installing portable apps onto a 1gig sd card which plugs into the eeepc.
Today I left the dell home and only took the eeepc to school and can't say Ive missed the big un. I think I'm preferring the eee (obviously if I need to use photoshop I'll be telling a different story) in general. It's fast, screen is easy to read (one caveat in a mo) and its portability is liberating.
The caveat is for large dialog boxes - inconvenient, but overcomable by using Winmover, which allows dragging windows with an alt arrow combo.
2 other teachers at school saw mine and went and brought themselves ones.
last one, the eeepc user forum at http://www.eeeuser.com/
is a huge, active repository of advice... excellent resource.
Summary of what Ive been doing on it:
office suite (incl outlook)
watched a ripped dvd via usb tethered 2.5 hd
used ashampoo office suite
interaacted with access db over school network
streamed kcsm jazz radio whilst reading in bed (also did that with linux)
set up network printer (also did that whilst linux was on )
made a no hassle connection to a data projector - looked fine
Am looking forward to taking it on next overseas trip - I'll be smiling when I see people taking out there large heavy laptops!
Hope this helps