I have both 1.2 fully registered and 2.0 (no keycode yet

) installed on my Dell laptop.
On battery power (slowest possible start up) , it takes approximately 3 seconds for each version to start. There appears to be one "flicker" of the screen on the new version compared to none on the 1.2, but the start up time is essentially the same.
On ac power, with the Intel Speed Step on Max Perf, the startup time for both versions is 1.5 seconds. The "flicker" on Ver 2.0 is nearly imperceptible on AC.
BTW, Version 2.0 is GREAT. On batteries, limited to 30 fps, CPU utililization averages an economical 20%. On AC it's a meager 5%! The battery cpu utililization increases because the Speed Step reduces CPU speed from 2 ghz to 1.2 ghz, and the ATI Powerplay reduces the chipset power, putting more load on the CPU. Still, 20% is excellent and really makes use of the graphic chipsets power. Great job, guys!
Cleve