I just recently purchased a super compact Fujitsu U810 UMPC (my review is under development right now) because my personal gadget budget had a cap of US$1000. However, for those of you in the enterprise looking for a serious road warrior device that is high portable and has everything, but the kitchen sink then you may want to check out the newly announced Lenovo X300 notbeook that is the thinnest and lightest ThinkPad ever.
The Lenovo X300 has a starting weight of 2.9 pounds and a 3/4 inch thickness at its thinnest point while having a LED backlit display, 1,8 inch 64GB SSD (standard drive in this model), Intel Core 2 Duo 1.2 GHz processor, up to 4GB RAM, battery life up to 10 hours (using optional additional 3 cell battery), integrated DVD burner (optional), integrated webcam, integrated GPS (option), and more in a carbon and glass fiber body. It even has all the wireless options you could want with WiFi, Bluetooth, wireless USB, wireless carrier support (dependent on carrier chosen), and WiMax (won't work until the networks roll out though). A device like this is of course optimized for the enterprise user with a fingerprint reader, I/O port diablement and 32-byte password protection.
Prices start at US$2,548 and if I was in the market for a high end road warrior device, then I think this would be the one.