I have been using Windows 7 since the beta first came out with very minor problem and am now using it as my only OS on my machine. I have a 2nd partition in which I have all my documents, programs and so on. I also have a full C copy on an external HD run by Norton Ghost.
Now when the trial ends and MS has not come out with a RC or retail product of 7 and I have to reinstall Vista on the C drive will I have a problem. I can't imagine this happening but with MS one never knows.
Call me paranoid!
I really like Windows 7!