The reality that most here miss is that Ron has far more patience than most of us young'uns. He's been fighting for 40 years to make small gains for the cause of liberty, and he's done it largely by working within the system while still holding onto his principles.
If Romney offers some REAL opportunity to advance the cause of liberty (and I have no idea what that opportunity could possibly be), to Ron that's a meaningful offer put on the table. To us, we have a tendency to confuse "not compromising principles" with "not compromising on your demands."
I think history may reveal that Ron Paul and his supporters are not necessarily as much on the same page as it seems. And if that's the case, it's not Ron Paul's fault, it's his supporters', for seeing in him what they want to see instead of what actually is. Sort of like how if Ron doesn't get the nomination and doesn't run third party, the faction of RP supporters who have it in their heads that "OF COURSE he will run third party if he doesn't get the nomination!" may be in for a sobering reality when Ron does exactly what he's been saying over and over again, which is to not run third party.
Personally I think Ron's friendship/alliance with Romney could very well work out in a positive way.