There's a game for Win CE available for download from Microsoft. I'm foreign to the PPC world, so this may be something that even comes with PPC devices. Someone from the dark side will need to let me know. But it's one of the top game downloads from this nifty MS download page. Also has the microsoft calculator download which is supposed to be an improvement over the base calculator in Windows. (You'll have to search for that one because it's in one of the other categories.)

http://www.microsoft.com/downloads/search.aspx?displaylang=en&categoryid=1

If anyone finds anything else interesting here, let us know!

Edit: Just remembered where I got the lead (for the calculator) and wanted to give proper credit... http://jkontherun.blogs.com/jkontherun/
It's a nice blog to visit!

Here's a link to a review of Cubicle Chaos (http://www.rapturetech.com/Review20001201.htm). Does look like a decent Arkanoid knock-off. I'll give it a try once the Axim comes.

And here's a link to the calculator (http://www.microsoft.com/downloads/details.aspx?FamilyID=32b0d059-b53a-4dc9-8265-da47f157c091&displaylang=en) that Bob mentioned. It is a nice improvement over the base calculator, offering some unit conversions and scientific, statistical, and boolean functions. It does say that it only works on XP and Server 2003, but you might give it a try if you run 2000.