i have a bianchi pista, i love it, but i don't ride it as much as i would because of the lack of rear brake. I have no problem stopping it, but i do get kind of tired on it.
Also annoying is that in NYC now you have to stop at every red light, which will get really annoying. i realize that this is somewhat dangerous, but i don't think it'll see the kind of use or hard braking that would make it a serous problem.
so, I'd like to drill the rear seatstay bridge for a brake, i just can't find a shop that will do it.