Originally Posted by
dtsm
1. TMO 3G network not compatible for iPhone; only option is AT&T network
however, t-mobile's 2g network will work fine.
the iphone will need to be unlocked for any sim other than his home system, which may not be possible in some cases (unless it's a factory unlocked phone).
2. There are a couple of threads on "US sim cards for data" - my sense is there are quite limited and not cheap.
3. Incoming calls stateside are not free (unfortunately)
4. International calls out on pre-paid are going to be fairly expensive
at&t offers a $3/day & unlimited calls option on their gophone plans. they also offer $1/day & 10c/min or 25c/min with no daily fee. domestic long distance included, international is not.
2. use wifi hotspot with skype for international calls
3. get second mobile phone with pre-paid sim card for local calls. they are cheap. Best Buy, Walmart, Radio Shack, AT&T n TMO websites are just a few places that sell them.
either of those are probably the best bet.