I unlocked my iPhone som 20 days ago and it works well with Telcel. However, Telcel does not work with EDGE, but with GPRS. Does anyone know if the iPhone can work with GPRS and how?
It does work with Edge, however, the connection sucks and it's too expensive for what it offers. APN is internet.itelcel.com and no user or password required. If you cannot connect that way try user: webgprs password:webgprs2002
Just read your post, and if you still need configuration information to use the iPhone in Mexico, I think there's a post about the EDGE configuration on http://iPhoneMonterrey.com.
I used the settings there for Movistar and it worked.