So it's not true that "Had Mitt won the presidency, ... a lot of these guys bitching about Obama would be standing right in line behind Mitt,"? One counter-example does not a disproof make; even lot of counter-examples would only be sufficient if it meant that the people complaining about the surveillance who were and would be OK with it under a Republican president a minority. They may well be (I certainly hope they are!), but I've not seen anything yet to indicate that they are.
And, yes, people who complained about what Bush did and would have complained about it under Mitt but who defend it under Obama are, indeed, just as hypocritical.