I just updated my infrastructure to kubuntu 8.10. Both desktop and laptop. Desktop is HP5800 and laptop is Panasonic Toughbook CF-W7. I really enjoyed how easy it was.
Panasonic CF-W7 has integrated 3G modem, which works nicely with kppp. It has saved my day several times, while on run and urgent need to email or web. I hardly would belive that I never acquire laptop without integrated 3G.