Still holding back on downloading Yelp for the iPhone and iPod Touch? Refrain no longer. Version 2.0 adds two significant features that put the mobile version of the online rating service back on the map--activity feeds and two ways to submit modified ratings and reviews. Still, Yelp 2.0 is not without at least one very large hole. Find out where it scores and where it misses the mark in this First Look video.
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