I have it... it's a piece of cr@p. I have location services shut off as there were complaints that it used up batteries.

My biggest issue that seems to happen to a lot of people is that it gets "stuck" on a survey and crashes. The only thing that fixes it is to delete and redownload from itunes. However, when it works the surveys are pretty easy and I've earned a few dollars taking them. They are different than the regular surveys you get via email.