andrewmin writes: "Most of the time, I'm at my computer. Or near it. And if I had an internet device like a Nokia N810 or an iPod Touch, I'd have it with me 24/7. And since most of the time I'm at a place where there's a wifi network, it makes sense for me to use VoIP rather than a regular phone line. Now, you're probably ready to sit back and listen to a pitch for Skype's cheap $0.021/per minute or Gizmo's even cheaper $0.019/minute. If you're really tech-savvy, you might be expecting a pitch for iCall, which has free calling in the US and Canada and a free phone number. However, iCall is Windows-only and doesn't always work. That's not what I want. I'm talking about making and receiving calls that are completely free (that is, $0.00/minute) forever (that is, no 30 day demo) for as much as you want (that is, no 30 day trial or five hour/week limit). The key? Google's closed-beta GrandCentral."