I upgraded my Acer Aspire One AOA110 to Lenovo S10. It comes with Windows XP SP3. Removed Norton Internet Security & Adobe Acrobat Reader, configured settings and did a image backup using CyberLink OneKey Recovery. Created a recovery DVD from the backup image and tested the recovery. It takes less than 30 minutes to restore Windows XP. This Intel netbook comes with a bigger 10.2" screen at 1024 x 600 and bigger 160GB HDD.
The Lenovo supplied 6-cell 52Wh Li-Ion battery takes 2 hours 45 mins to fully charge while not in use and 3 hours 30 mins to fully charge while in use. It lasted almost 4 hours with the brightness set to the lowest, performance mode, wireless disabled and surfing with 3G modem.