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Very likely, give it a few weeks and you should have an unlocked iPhone.

And it'll be completely unlocked and free to use both voice and data (3g) on any carrier that supports the necessary frequencies?

I'm sure there's some sort of quick rundown of what it takes to unlock, but is it a relatively easy process for the guys like "The Dev Team" (I think that's their name)? I'm sure that they've had enough practice with it now that they know what to look for to do it but even for them, with Apple and perhaps ATT trying to throw in different countermeasures, is a pretty straightforward process?
 
I hope they don't take too long to get 3G Unrestrictor and MiWy working ...
 
What I'm really surprised so far is that no one has responded with "Dude I just tried this and now my phone is bricked. Help plz."

That is the unfortunate things about people making public this type of info. Many idiots will try and then wonder why they cannot make it work.
 
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