In an interview with Leica friends, Stefan Daniel, the current Leica chief, has mentioned that the X1 is not an isolated camera, but the start of the X-series, which could also bring cameras with zoom lenses. Read all about it in the L-forums.
RAWsumer reviews at the Compact Reviews Organizer
CANON: G11 S95 G10 G9 S90 SX1is
PANASONIC: LX5 LX3 LX2 FZ50 FZ100 FZ40/FZ45 FZ38/FZ35 FZ28
RICOH: GRD III GRD II GX200
SIGMA: DP2 DP1
NIKON: P7000 P6000
CAMERA DIARIES: Panasonic LX3 Canon G10