I have an AT&T wireless account and am considering adding international calling to the service for the period we will be in the Czech Republic (the first two weeks of August 2009). This will be used for calls to and from the United States and locally within the Czech Republic. :?: Can anyone tell me if AT&T service is good in the area bounded roughly by Prague, Cesky Krumlov, Pilsen, Cheb, and Kladno? :?: Should I try to find a charger compatible with Czech electricity or can one be purchased after I arrive in Prague? I have a Samsung SGH-A707 phone.