Hello everyone. i am new in the forum. first of all i don't own a droid but soon i will have it in my hands because i will buy from craigslist. i really like this smartphone and im dying to have it but i have a few questions to ask just to clear up my mind. 1. is this phone a GSM phone where i can use a sim card to other countries aside from US? i am going to use the phone in singapore.. 2. is this phone already running android 2.2? or if still using the old 2.1, can i update to 2.2 even though i am here in singapore? 3. once i rooted the phone, is it possible to install a themes? my concern is that maybe i cannot use this phone in a GSM countries and i cannot update the OS. thank you.