I have an idea for a tandem cargo bike I want to build and am wondering if anyone has tried something like it yet. It would be one of two configurations, with either the cargo area infront of or behind the stoker. I'm thinking at the very front have the captian, then a low square frame cargo area and then the stoker at the back might be the best. It would have a very long wheel base, but even if it was 100" it would still turn better than most cars. I think it would be awesome for a couple to have for shopping, running errands, etc. something similar to this but with a stoker behind the cargo, and with 26" wheels:

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