I bought a replacement netbook recently:
my old MSI Wind didn't really have the battery life I wanted but it worked fine otherwise.
Picking a netbook should be fairly straightforward as the specs are all the same but I was particularly attracted to the EEE 1101HA because of the advertised battery life and 1366x768 (11.6") resolution. The resolution makes Outlook (and some other apps) that bit more usable.
So I picked one up. Nice machine - and it indeed has a great battery life. The 'seashell' design means it's perfect for carrying around. But it runs a Z series Atom processor so it's a bit underpowered and sluggish at times.
I read somewhere (can't find it since) that the Z series can only recognise 1GB of RAM so I was a bit peeved, but turns out it can take 2GB.