Will it amount to legislation? Nope. It's just pandering, but to whom, I couldn't tell you.
Obama obviously has to give his supporters who favor gun control some hint of hope. If he joined the NRA and started taking his family shooting on a weekly basis, he would still attract precious few votes from gun owners (he continues to support a new assault weapons ban according to his press secretary). But a hint that he might do something to advance gun control may be enough to energize some of his supporters. And if nothing happens ... it is Congress' fault.