My other seedlings planted in the "String Garden" are also doing very well, as are the eggplants as seen in this picture:
I also have several "Celebrity" tomatoes growing in containers that are doing very well. If you're unfamiliar, the Celebrity variety is a hybrid, determinate variety that only gets about 3 feet tall, making it perfect for containers. It has medium sized slicing tomatoes on it that I've found to have very good flavor. Here's a picture of one of these in a 5 gallon self-watering bucket planter:
You can also see my pickling cucumbers next to it there, also doing fairly well.