Canon EOS M Specifications 
The Canon EOS M that launches tomorrow will have the following specifications. Beyond the camera, the system will launch with 2 lenses, the EF-M 22 f/2 STM & EF-M 18-55 IS. It will also launch with a new flash, the EX 90 and an EF lens adaptor.
 ■18mp APS-C
 ■DIGIC V
 ■ISO 100-12800 (25,600 Expansion)
 ■3″ Touchscreen 1.04million pixels
 ■Phase & Contrast AF
 ■Video Servo AF
 ■1920×1080 Video 30p/25p/24p
 ■1280×720 Video 60p/50p
 ■MPEG-4, AVC/H.264
 ■SD Card
 ■
Adaptor at launch for EF lenses 
Additional specs from [DCI]
 ■Hand-held Twilight mode, to help with long exposures in low light.
 ■Multi-shot noise reduction function that helps reduce the noise by combining four images.
 ■The usual creative filters
 ■HDR mode to synthesize three different exposures
 ■Camera size: 66.5mm (width) 108.6mm (height) x 32.3mm (depth)
 ■The weight (body only) 262g, (including battery and memory card) 298g
http://www.canonrumors.com/2012/07/canon-eos-m-specs/