If you recall, not too long ago the Zune 2.5 update added support for games development. The XNA team released their first game (via Got Zune) for those willing to dive into the XNA dev software. If you are willing to spend 5 min or so, it is relatively easy to get these games going on the Zune. There are a few guides out there, but take a look at this video that Cruleworld had made for and see how easy it is to get games onto your Zune. Really you don’t need any development experience, just a little old fashion pointing and clicking.
While many of these games are more hobbyist creations, they are rather entertaining and give of a taste of what it to come on the Zune in terms of gaming. Personally, im still holding out for my top Zune game picks. In the mean time head over to the abi Zune Forum to check out the video and get some help if you need it.