PhotoOomph by Joshua Cunningham

Samsung has added a new model to its NX range of interchangeable lens cameras in the form of the NX11. Essentially the NX10 with updated firmware, a slightly slimmer hand grip and a new single-sweep panorama mode the new body is due to go in sale in the UK in February. While the NX10 can be upgraded via the latest firmware to be fully compatible with the company's i-Function lenses the NX11 comes with compatibility already built in. The differences between the NX10 and NX11 bodies are very slight but Samsung says the two will run side-by-side in the company's range.
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Read more at http://www.amateurphotographer.co.uk/news/_CES_Samsung_adds_NX11_to_mirrorless_range_news_304727.html

Source: http://www.amateurphotographer.co.uk/news/

It seems the Compact System cameras are rapidly growing in number and popularity, with Sony and Samsung leading the way due to their APS-C sensor oposed to the Olympus and Panasonic Micro 4/3's
Rumours and hints are still strong that both Canon and Nikon will be launching a system at some point this year, both looking to take a slice of the sales. These will of course run along side there extensive range of full size SLR's.

However the brand which really started all of this in the industry was Ricoh with the GXR:
"It’s not every day that a brand new photographic system is unveiled, but that’s exactly what Ricoh have delivered in the form of the new GXR camera. The Ricoh GXR is the World’s first “interchangeable unit camera system”. Digital SLR’s allow you to change the lens on the front of the camera - the GXR allows you to change the lens and the image sensor, which are combined into a single interchangeable unit. " - Source and full story/review: http://www.photographyblog.com/reviews/ricoh_gxr_review/

Whilst the Ricoh has the smallest market share, the development of the rest of the systems would have taken much loner to develop in my opinion. I think whilst the GXR has great technology the price of the lenses for a camera of that style and without a big name lens company behind them is what is holding it back.