If you spend too much time organizing your stuff or just can’t find it, you need to take a close look at Tiger. There’s a real experiential difference. What’s missing? Not much. I’d like to see more RSS support so I can better read and search off-line, and I wouldn’t mind seeing Microsoft add Spotlight support for Entourage. Otherwise, this operating system is near nirvana for productivity.
There’s no doubt that a lot of similar concepts will be included in the next version of Windows. But Longhorn won’t be here for at least 18 months. It will be interesting to see what Apple has for us by then.