Steve and I finally couldn't wait any longer (well I couldn't wait) and we dug up our 'potatoes grown in a garbage can'. Not bad! We got several pounds worth, and even a few good sized ones. We are taking the spuds camping tomorrow (we are camping, the spuds are going along for dinner lol), and I think they will be delish cooked in foil.
Next year, we'll plant fewer per can, and have several cans going. This was soooo easy and didn't have to weed even once.