Stupid Travel Questions

[ww3kc]

OK...I probably should know this, but I don't. If I take my Sprint Hero to Europe, will the stock HTC clock update via wifi from whatever country I'm in? Will GPS work in Europe? I don't have a VOIP voice system set up, so I know talking is out at this point, but I can use email, Google Talk. Any good non-CDMA travel tips are apppreciated!! Actually, my parents are going to Belgium in April and I think I'm going to get them a Sprint Hero (like mine!) for Christmas, since their current Samsung flip phone is totally unusable in Europe. Thanks!!