I still have a Dell Adamo 13. The specs are low (1.2GHz Core 2 Duo, 2Gb RAM) and I get about 3.5-4 hours out of it, but thanks to the SSD it's still fairly responsive in everyday use. Weighs about 4lbs. I'll be very sorry when I finally have to get rid of it, because it's the only machine I've seen yet that's of the same design and build quality as an Apple without being an obvious clone. The design was ahead of its time too - it had DisplayPort long before most other ultraportables.