In case Logitech needs a visual between what the App switcher does heres some screen shots from my work machine and my home machine
Home machine (Windows 7 x64 with dual 22" monitors at 1920x1080:
First shot is with 5 windows on each screen
App switcher forces all windows to screen 1 with last 3 windows on the right side split between the 2 monitors 
Work machine (Windows XP pro with dual 19" monitors at 1280x1024:
First shot is with 5 windows on each screen
App switcher keeps the windows on their respective screens using all available screen space 
If i load Setpoint 6.30 on my work machine it does the same thing as my home machine, same concept if i load Setpoint 4.80 on my home machine it does the same as my work machine so that rules out XP vs Windows 7 arguments, it rules out 32bit vs 64bit, and it rules out dual 19" monitors at 1280x1024 vs dual 22" monitors at 1920x1080.
