Mattel's super small "Stealth Rides" aren't making their official debut until the Toy Fair later this month, but for all you know the guy next to you could be packing one... right... now.
They're about the size of a credit card and the width of a cellphone, and with the push of a button they...
I want to by a folding bike for use with public transport and to put in a car. Any advice? Something you forgot to consider and that I should really think about?
Lighter? More solid? Locking? to difficult to fold and unfold?
(Advice on specific models is not so useful)