A slight hijack of the thread here. Is there a way to tell if your phone (in this case a Palm Treo 650) is unlocked? The phone is a few years old and I bought it for my wife. I'm now using it and will be traveling to Europe later this summer. I'd like to buy a SIM card over there to use, but if my phone is locked that plan won't work.

If my phone IS locked, I'll also be looking for a simple unlocked phone just for use this summer.