I recently learned how to jailbreak an iPhone 3G and unlock it. At around the same time, I’ve had a few people offer me their old cell phones. I have a nice new Blackberry, but my wife has an old flip phone, and texting is very painful. Several of these phones are slide phones, and they are unlocked with a code. I’ve looked online, and some places are offering the codes for $30 or so, but one place has them for around $7. I haven’t tried it yet, but when I decide which phone I’m going to use, I’ll probably try CellUnlockedNow.
UPDATE: I tried to use their service to unlock a Samsung Evergreen that someone gave me, but they couldn’t do it. That’s disappointing! They will refund me my money.