I cannot understand why anyone would want Google Desktop if he can have iGoogle. I must be missing something. Google Desktop has to be installed and personalized on your computer, whereas iGoogle is akin to having your own personalized login webpage. Both give you the same ability to install or remove the Google gadgets, so what gives? With my iGoogle set up, I can go to any computer, log in to my account, and see all the apps I have installed, including Gmail, Calendar, Google docs, weather, Pick of the Day pictures, news feeds, etc.
If you have not tried either, I suggest you give iGoogle a go. You'll be surprised what you have missed out. While you are at it, switch to Firefox browser. Oh yeah, sign up for the Foxmarks bookmark synchronizer too. Download OpenOffice as well. Er.... maybe you can now drop Microsoft a note to say you won't need them anymore. Yes, if you do all of the above, you may be ready to switch to Linux and not feel any great loss.