<3 my Ubuntu Vostro
Currently using my Dell installed Ubuntu Vostro and it's great for development!
I'm a perl/apache web site developer and I dabble a bit on the mobile side (IOS & Android); It's a fantastic little device (the laptop), we would have gotten more but could never find them again?
Anyways, the only thing I'd change would be to add another 2Gb of RAM (came with 2Gb installed).
Not really fussed about GFX (as long as it isn't geen-screen :), most of my day is spent in the terminal with VI or Eclipse.
Someone (i forget who) released a hardware accelerated version of the Android sim, that would be nice.