So I downloaded foreflight earlier today and installed a lot of the available downloads for it, in hopes of selling my pilot friend on the iPad. After installing a number of the available downloads, the iPad locked up while using the app. I attempted to remove the app, which seemed to work, but iTunes still showed it installed (including the large amount of associated data) I tried removing the app from iTunes and re synching and this just caused iTunes to crash and I get an error saying it couldn't be removed, even though it is no longer listed in iTunes or on my iPad. I power cycled the iPad, restarted iTunes, rebooted the iPad and am now forced to restore the iPad to clear the data off