I have spent considerable time reviewing much of the discussion on this topic and cannot synthesize a decision. So here goes......

I will spend a month in Paris and will use my phone mostly for local calls, text messages, etc. Calls to the US will likely be VOIP (Skype), although I may occasionally not have access to Wifi.

Options that I have gleaned from this forum:

1. Unlock the (USA purchased) iPhone and use a local SIM card. I have ATT and am reasonably happy with it, so no intent to change carriers when I return. What are the implications of/problem with unlocking - legal, practical, otherwise?

2. Purchase an ATT international plan. Can I do that for 6 weeks?

3. Buy or use an old unlocked phone. Not a very attractive option since I have addresses, etc on my iPhone.

Sorry for rehashing what is probably already here somewhere, but any advice (especially regarding #1) would be appreciated.