However, that 28 MpH maximum speed is a legitimate limitation/problem, even on my under 10 mile commute, there's at least two roads that are 40 MpH (people drive 45 MpH), and I'm going to get honked at if I can barely maintain 28 MpH.
I like the price and concept... But that max speed is a deal breaker. It will be interesting to see what cost a freeway model is.