$1:
I had a Dell Mini 9
You managed to pick the absolute worst Netbook to base your opinion on.
A same gen AspireOne with an XP re/re blew the doors off those in side by side tests. So did the MSI and we noticed afterwards we'd had it on underclock.
a) get it up to 2GB RAM, then the crappy Intel onboard video improves.
b) wipe the damn thing and reinstall from MSoft disk instead of the Dell.
I FORGOT: there were even worse - the 1 GB Atom/Vista abortions HP/Compaq tried to flog.
The WHY over the difference is beyond me they all have the same components. I put Win7 Pro on my year old Toshiba Netbook and it blows away the latest HP netbook with Win7LAME on it.
The 7" Asus EE I mentioned has a Celeron underclocked to 633Mhz - and it blows away the AspireOne with a 1.6GHz Atom running XP! (Both have SSD drives)
As for Office, I put 2003 and only Word & Excel on it to read attachments, I'm not going freaking blind trying to use one for writing anything.
Download the Ubuntu netbook remix. It's what they all should have on them. The whole Netbook concept got lost and went to shit the minute they insisted on Windows.