Lenovo Which has good Linux compatibility and good reliable product has released the Lenovo X200 with 12.1″ display.
This is similar to the popular Lenovo X61 except that it has the new Intel Centrino 2 processor which improves battery life significantly. (you can get up to 9 hours! of battery life).
It also has the faster DDR 3 memory.
Now the X61 is available for steal! of $1000, if you may.