Well it looks like we are in a bit of a wait for the new stoves to appear on gear store shelves. I found the July 18, 2011 Cascade Designs press release which states:

The 2012 line of MSR stoves featuring the new and redesigned models will debut in Europe at the July 2011 OutDoor Trade Fair and in North America at the August 2011 Outdoor Retailer Summer Market. The line will be available in stores January 2012.

Note that there is also more info in the release about each stove's features.

I added a reminder to my email calendar for January...
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Earth and sky, woods and fields, lakes and rivers, the mountain and the sea, are excellent schoolmasters, and teach some of us more than we can ever learn from books.

John Lubbock