If we put asside the fact that Kies has many problems and that connecting the phone through usb is a real pain I found a solution that some of you might be interested in... I wasn't able to connect to KIES a few days ago no matter what I tried.. I wanted to back up some contacts etc but couldn't.. Also I wanted it to work in case froyo comes out... Anyway I found out the reason why it didn't work. Instead of using touchwiz I was using the launcher pro interface. Turned out that if I wanted to connect to KIES I had to switch back to the touchwiz interface and then connect the USB... Don't ask me why this worked but it did.. So if you have problems with KIES and aren't using touchwiz my advice is to put it back on in case you need to connect to KIES..