CAVEAT EMPTOR! Sad tale to be aware of; unlocked phones may be severely crippled in the features available on another providers network!! Purchase Motorola V600 (Quad band) GSM phone for extended trip to Europe. (Domestic uses 840+1900, Europe 900+1800) Phone was already unlocked (shipped locked to T-Mobile however) in the box, and I only needed to swap the SIM card from Cingular into this phone --- works great, except no Email nor Browser support! Called Cingular and we got TXT messaging working (but I don't normally use it), but we could not configure Email/Browser to access the Cingular network at all. The T-Mobile software is so different, there's no settings for things like IP-Address and Port numbers! Called T-Mobile (1-209-904-2030) -- catch 22, not a T-Mobile user and therefore can't even access the phone. Called Motorola Support (1-800-331-6456). WOW! Service person was nice enough, but spouted official Company rhetoric. "The phone was manufactured for T-Mobile and with that contract, the T-Mobile software was installed. It is illegal for us to uninstall or replace that software." 1) It's MY phone, not T-Mobile's 2) I choose the service provider I need 3) said contract is collusion and conspiracy by the manufacturer and the service provider(s) here domestically (US) to force either a new device purchase and or to coerce a specific service provider. 4) European users do not have this problem and pre-paid SIM cards allow access to ANY SERVICE provider. 5) Heck, I've even purchased a pre-paid SIM and it connects to AT&T without any difficulty -- just no means to configure Internet access -- due entirely to the T-Moble software (hum-- dumbware!!). I informed the Motorola support person of the above and that I traded a Better Phone (Nokia) so as to quickly acquire a Quad-Band before leaving for Europe. This experience has soured my opinion of Motorola products, but to be fair, it's very likely to be a conspiracy across the industry here in the U.S. CAVEAT EMPTOR!