I'm a web dev and I can say that I have tried it. I do appreciate what MS has put into it and the operating systems works well as long as you don't install too many apps. I have a few standard dev apps, and browsers, that tend to cause vista to hang for about 2mins. The only reason I say "hang" rather than crash is that I got tired of restarting and just let it sit one day to find that it eventually fixed itself. So one positive thing is that vista seems to do a better job when locking up. And really, this issue is only because the OS is new, just like XP was a time ago, and eventually apps will catch up. The only real bone I have, besides the nagging verification window which I disabled right away, is that the system, right out of the box, is a major memory hog. But RAM is less expensive now days so really that is less of an issue than it was a year ago. Although my dev work would go much more smoothly on XP, Vista is still able to get the job done well enough and time will heal the hanging apps. Not to mention I can play some impressive DX10 games :)