Don't forget the part about ... at no charge
... Not as soon as one would like, but this is pretty good aftermarket support. Kudos to Canon.
Meanwhile... at NR they are splashing a story about how a gap in the corner of the shutter curtain housing makes the D600 a dust bunny. Folks are quippping about I AM NIKON / I AM SILENT on its failure to even acknowledge the issue (so far anyway).
I don't mean this as a C/N snipe (just think about tainted rubber for perspective) -- I'd like to make two points:
1) This pre-announcement of support shows Canon is serious and energized about competing.
2) As one considering what to do moving forward from Canon APS into FF sometime in the next several months, this does score some points with me for staying with Canon.
Oh, and speaking of tainted rubber and dust bunnies: the general rule still holds: never be an early adopter.