[Darth Reardon]

I haven't used those, but most of my tomatoes hang and it works quite well. I use a hydroponic system (slideshow of hanging tomatoes at link). I was advised to plant only half as many plants per pot when planting tomatoes because they need more room for the roots.

[Normandy]

Thanks for the link — I like the look of that system. Seems to make more sense to have the plant growing out of the top of a container than the bottom.