@Yaros525: Your app works with 550D also (Windows 7, 64-bit). On entering ML menu (on camera), app on PC says "Live View suspended". The camera image immediately comes back to PC when leaving ML menu. If you turn on RAW video, however, and then exit ML menu, Live View remains "suspended" and there is no picture transmitted to the PC. In short: what he said! But very cool app anyway, for H.264 for now. Focus peaking, RGB, HSB (don't you mean HSV?) and Zoom all work as well, as well as indicators for picture style, aperture, etc. Lag seems to be somewhere under half a second. Full screen works great with this app, so that if you have a 1920x1080 monitor, you are seeing your HD image pixel-for-pixel, which is amazing for focusing purposes. Also, it works differently from Canon EOS Utility, which, as far as I know, will not show the camera image in full-screen.
All in all: great start, super monitoring solution for H.264. Cheers!