The question now is whether that will be joined by external pressure of some form. After provocation after procovation on Tehran's part, it's hard to envision the West keeping its "hand of friendship" outstretched much longer. But it's also unlikely that Barack Obama – his eyes on the domestic polls – will want to talk too tough after committing 30,000 more troops to the unpopular Afghan conflict.
To my mind, the upshot will be a year of increasingly severe sanctions against Iran – mostly, and slowly, administered through the UN. But the Great Unknown remains Israel. As I've highlighted before, their timeline sees an Iranian bomb in the not-too-distant. And the clock continues to tick.