World Phone Unlocked?

[dfisher52]

Hi all,

I am coming from a HTC TP2. It is a "world phone" as it supports both CDMA and GSM. However, if I recall correctly, I needed to call Sprint to get the phone "SIM unlocked" so that I could use any SIM card from an overseas carrier when I am overseas, instead of the one that Sprint supplied with the phone.

First, do I need to do the same thing with the Photon, or is it good to go right out of the box as far as using European SIM cards when in Europe?

Secondly, there was another level of "unlock" that was cooked up by the "chefs" and was not officially sanctioned by Sprint, that enabled a TP2 user to install a SIM from a US domestic GSM carrier (AT&T or T-Mobile). Would I need to go through a similar process if I wanted to put an AT&T SIM card in the Photon, or is it automatic? Is it supported by Sprint? Is it even possible?

Thanks in advance for your assistance and support.
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