For all those who preferred incoming calls interrupting the data transfer, you might be out of luck, as our dear friends using iPhone's have noticed a while ago. There is a thing called 'Network Mode of Operation' in GPRS, which basically dictates the behavior in this case, what happens when an incoming call comes and you have a data connection active. The quickest link I now found is below, however it is not the best one, try googling more if you are interested. http://reviews.cnet.com/8301-19512_7-10115034-233.html The basic idea though is that there are three different modes, NOM1, NOM2 and NOM3. And NOM1 and NOM3 are good, NOM2 are bad in case of the dropping calls as the NOM2 can't signal the data channel that there is incoming call... And for example AT&T here in U.S. uses mostly NOM2 networks, I do not know what mode T-Mobile uses, but 3G works on that, so no problems. In Finland the networks are either NOM1 or NOM3, etc depending on operators, and so on.. ps. waiting for my phone number to switch to T-Mobile, can't live without my N900 nor my incoming calls...