After more than a year since releasing its ultra-thin Adamo 13 laptop Dell has decided to lower its price tag and improve its hardware specs to make it more attractive to consumers. Previously priced at $999, the base model now costs $899 and features double the RAM at 4GB as well as a more powerful 2.1 GHz Core 2 Duo SL9600 processor (up from a 1.2 GHz SU9300), along with the standard 128GB solid-state drive and 64-bit Windows 7.

Other specs remain the same: an aluminum chassis weighing around 4 pounds in total and sporting a thickness of just 0.65 inches, a 13.4-inch LED-backlit screen with 1,366×768 resolution, 6-cell non-removable battery, two USB ports (one with eSATA), Ethernet and DisplayPort, and the option for an internal broadband 3G modem.

Just last week we were mentioning that one of the biggest drawbacks with thin notebooks is their price tag, but Dell’s Adamo 13 certainly gets a strong price advantage over the new 13-inch MacBook Air, which sells for $1300, while also offering beefier specs. If you want a really thin and sleek looking Windows 7 machine this seems like a solid bet.