I normally play on a decent desktop at home, but I work away during the week.
So i have been playing on a MSI Wind Netbook - 1024x600 screen, Intel Atom 1.6GHz processor.
It did have a bit of an upgrade this week, as i had a spare 64Gb Samsung SSD. Put the new SSD in on Monday and re-installed XP from a USB stick. :)
Doubt it will improve the game speed any which is just playable for simple stuff.