I've created a (fairly rudimentary) gadget for iGoogle (Google's personalized start page).
gConquer will display a list of the games you are currently participating in (based on your RSS feed), and color code them based on status (Ready, Playing, Waiting, and Eliminated). A link to each game is provided, and mousing over the link shows the time and date at which the current turn will end. Additionally you can add multiple users to keep tabs on your friends' games.
You can add gConquer to your start page by clicking here:
A big thanks to Janiv
for making the OS X Dashboard widget
The source is available as part of a Google Code project
. I would ask though, that rather than distributing modified versions of the code that if anyone has any suggested changes they post them here (or let me know and I can make you a member of the Google Code project so you can make changes yourself).
Note: Due to limitations of the Google Gadget API, gConquer will only list the first 100 games from your RSS feed.