Exactly why I got my Dinc2 on VZW unlocked. My wife and I spent our honeymoon in Ecuador (beautiful country, btw) and I bought a Claro SIM in a store on the street and was able to call and text home (though Skype was cheaper when in the hotels, being able to call around the country and home if need-be was what I wanted).

Ditto in India over Christmas. I bought a Vodafone card and was able to call home, or would have if my phone wasn't being stupid (yay! for unstable roms!)