Ooh, lots of interesting going ons in this thread - Thanks everyone for sharing your thoughts and pics! Let's see if I can remember what posts I wanted to comment on...
EOS M Black-out: I believe this delay was greatly improved upon from M to M2, to such an extent that it was highlighted in the M2 video promos on YouTube - or if I'm mistaken, users at least made comparison videos of that and also the increased AF speed - so I imagine the M3 can only be further improved with the next gen sensor (2 gens from the M1) and processor!
Pop-Up BOUNCE Flash!: I'm disappointed to hear it feels a little flimsy BUT... It tilts up for bouncing, right?! This is an AMAZING feature - has anybody tried it out with any success? If people remember it's there this could save a lot of opportunities being lost vs leaving a bulky flash at home!
SL1 People!: I'll join you in hijacking this thread, just a little
Here's a wildcard and I hope you consider it: "EF 100mm f/2 USM" - I don't think a (relatively) petite, sexier SL1/Lens combo exists, and given the choice I'd probably rather crop a 4.5mp image from it than shoot a much slower 200mm lens. It's fairly compact, fast and to me is possibly the pinnacle of APS-C shooting speed/reach/portability compromise (and prior to the new 24mp and DPAF sensors, the M2 and SL1 sensor was/is Canons best, beating the 7D!)
Also, the 50mm 1.8 (mk1 for me) is also small and awesome on the SL1/100D