It's a shame that the Zune HD died so young. It had so much potential. But life goes HEY LOOK! Microsoft just released 9 new Zune HD apps. For some reason... Should we stop mourning now?
And older Zunes, too! But let's talk about the HD: With the new OpenZDK toolkit, developers can make homebrew apps for the Zune HD, and by following a relatively simple set of instructions, you can install them.
Game maker Foundation 42 is one of the first developers to get an app working on the Zune HD, and it looks like it wasn't too difficult a process, taking only 12 hours. This is a good sign.