using US iPhone w/foreign SIM while abroad
This may be a dumb question, but forum and google searching hasn't quite answered my question (its possible that I just don't know of the correct keywords to search with, though):
Given that many companies/countries use different 3G frequency bands than each other, how well will a US-bought iPhone 3G work outside of the US when using a foreign SIM? For example, would I be able to travel to someplace like Germany, pop in a pre-paid SIM local to that country, and be able to use 3G data and voice comparable to being at home in the US?
I ask, because I know that many phones imported from Europe to the US will work for voice, but are often limited to Edge-speed data due to incompatible 3G frequencies...