Seem it began it's climb after a 'buy' recommendation in SmarTrend and then it took off even more after the announcement of presenting at RedChip (which was a good presentation). No rumors, just long over due recognition by the investing community.
No rumor, just perceived growth in a slow economy that is going to get slower if oil prices continue to go up. This is what happens to companies that do nothing for years and then they gain momentum as their earnings grow and the mutual funds and value guys begin to notice. that's why small cap investing is the only way one can get wealthy except you need to have some patients which most people don't have in today's vesting world.