As promised, Canon has released a firmware update to allow current SX1 IS owners to enable RAW mode on their cameras.  Unlike smaller companies like Ricoh and Sigma, Canon doesn't have much of a track record when it comes to using firmware updates to add new features, but this is a great step in the right direction.

I'm not aware of any other manufacturers enabling RAW with a firmware update.  It would be amazing if Canon would do the same for some or all of the many cameras which have RAW enabled via the CHDK hack.  The Canon G7 certainly comes to mind.

I wish Fuji would take the cue from Canon and consider enabling RAW in a firmware update for the F200EXR.

More information at DCViews via 1001 Noisy Cameras