Lenovo recently launched its super slim notebook named the X300.  It is comparable to Apple’s MacBook Air and has a businesslike look.  Besides the looks, it offers several functions.  The ThinkPad X300 beats the MacBook Air in a few areas:  the wide range of ports and connectivity options, a removable battery, and an integrated DVD drive.  Sadly though, at $2500, it is more expensive than the MacBook Air.
The X300 weighs 2.93 pounds, and at 0.75″ at its thinnest point measures the same as the thickest point of the MacBook Air.   Once you add the full size battery and a DVD drive, the weight goes up to 3.5 pounds.  Other features include a full size keyboard, a 13.3″ LED backlit display, an Ethernet jack and a cellular phone modem.

Lenovo has Intel 1.2GHz Core 2 Duo processor at 400MHz