If anyone is curious about the feel of 29" wheels on a MTB frame, Cadence Cyclery is hosting a demo of them:
http://www.cadencecyclery.com/
 
We are hosting a Niner Bike demo this Friday and Saturday.
Rider [sic] EVERY Niner in your size on the same day!
 
Friday 4pm-Dark
Saturday 8am-4pm
Erwin Park, McKinney
4300 County Road 1006, McKinney, TX ‎
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Cadence Cyclery
129 South Tennessee • McKinney
McKinney, TX 75069