hi im new to the site as i want to learn about my new phone the htc desire hd 1 thing i want to know about is the check in app my friend says it should be free but the only 1 that looks official is the andriod 1 and costs 62 p and some people say it dosent work properly can any1 put me straight here as my mate says its an app made by facebook and not android? thanx in advance David.