On my volvo it doesn't work below zero or when the car hasn't warmed up completely. It uses a 2nd smaller battery which is dedicated to this start/stop function and uses regenerative braking to charge the battery. The engine shuts off when I release the clutch at a red light. When I start pressing the clutch it turns on before it is even fully pressed.

I'm running the WRT160N with dd-wrt for more than a year now and it works perfectly (since I put dd-wrt on it that is, the default firmware sucks). The shop where I got it from now only sells the WRT320N, it has gigabit ethernet and is also supported by dd-wrt. Since it's got the same price I guess that's the new successor....

Speed of development, I guess. Ruby on rails seems to be quite good at this they say. Using netbeans 6 (release candidate) it was a breeze following the jruby on rails tutorial on netbeans' site and deploy it on my tomcat 5 hosting. After that I lost interest.

There is also the promise of a jruby compiler which compiles the ruby files into bytecode.