Here is an article on usability
http://reviews.cnet.com/8301-13746_7...ch-powerhouse/
and here is one on durability. I have one from a year and is never used on a tour but it has not suffered any of the issues mentioned.
http://reviews.cnet.com/8301-19736_7...-7-holding-up/
I wonder why they left out a front facing camera. It would have found more use than the back facing one.