Officially, it's for the Wife but ya know how that goes! We're eagerly awaiting the arrival of a micro four-thirds Panasonic Lumix DMC-G1 - their first micro 4/3" model, I believe. Just bought a body-only and a brand-new 14-42mm Vario kit lens to go with it.
So "we" are jumping from 55 lp/mm (Sigma SD10) to 111 lp/mm (G1). Should be fun. EVF, image stabilized, giant RAW files, etc. Can't wait . . .