EGHT went ballistic back in November when he recommended it (he is big on VOIP). I was short at the time, and at one point was down over 100%. I piled on near the top, though, and am nicely back in the black again.
I don't know Smith's record, but the EGHT episode inspired me to start keeping track of it. I'd like to see what opportunities there are for riding a stock up after a rec, then shorting it when the enthusiasm runs out...