Currently you'll pay around 400 for an Iphone which is unlocked (and yes, they're available in this country), however today the source code to unlock the phone was released for free. (Now you just have to buy the phone!)

The website is overwhelmed and I haven't met anyone who's managed to load the page yet. Meanwhile there are all sorts of things going round which don't unlock the sim card, they just make it possible to unlock it to use mp3's and stuff.