I've always liked how the Adamo looked; too bad the 3 year service warranty plan costs like 60% of the actual laptop (unlike other laptops, finding replacement parts in addition to working with the slim clamshell design is not easy).

 

I absolutely love the design of the Adamo. This, in my opinion, is the direct competitor to the MacBook Pros, in terms of design and/or beauty.

 

A real comparison...

13-inch Air
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Display: 1440x900 (20% more resolution)
VideoCard: GeForce 320M (VASTLY superior to the Intel graphics chip in the Adamo)
Battery Life: 7 Hours (You'd be lucky to get 3 Hours out of the Adamo in real world tests)
Weight: 2.9 lbs ( more than a pound lighter )
Glass multi-touch trackpad ( much better trackpad - read the reviews )
SD card slot
OS: OS X Snow Leopard (professional Domain-ready OS with tons of excellent applications on board)

+200$ more to get the Mac to 4GB and the same CPU as the Dell though the Mac will still run better than the dell at stock due to a more optimized OS.

Conclusion:
The Adamo is a nice machine at a good price but it is no Macbook Air.