[Bossman]

I agree with Andy. For anything more than a day or so in one place, a local sim is definitely the way to go. For example when I travel to Nigeria, I have a local MTN sim. I just sign up for one of the several data packages. For example, 500/MB for a month at a cost of about $3. The 3G speeds are awesome as well. The I tether to my netbook and use skype/voipcheap to call the US for dirt cheap.