it was most probably a YikeBike . It is rated one of the best 50 inventions of the year 2009 in Time magazine. YikeBike says: YikeBike is a statement about using smart technology to solve the problems of our increasingly congested, polluted, stressful cities.
In this case I relate it to our UnRisk-Q the quant-computing-and-developing system that packs the latest technologies into a minimalist infrastructure of a supercomputer-under-a-quants-desk. Shhh on NVIDIA Tesla. As YikeBike to be available in Q2 2010.