So, what can you do if you're stuck on Windows and want to use Apple Dashboard Widgets? You can go to Widgetop - a site that imitates Mac OS X widgets in your browsers (the site supposedly works best with Firefox). The whole thing isn't as pretty as the real thing of course, but if you want pretty you stick to Mac OS X ;)
Note: This is just an archive post. The blog has moved to a new home at blog.ialja.com, where you will also find a copy of the entire blog.