Reminds me of the cherry tomatoes I grew in my first hydro unit (an aero unit from Foothill Hydroponics). I need to start growing tomatoes again. If you wanna see a cultivated plant grow like a...uh, grow very rapidly, grow it aeroponically.
Nice growing, some people says pruning is the key to success with tomato plants. My grand pa planted a cherry tomato kit three weeks ago, that is also growing well.