Got a Zune HD? - First of all, good choice! (suddenly I hear the murmours and growls of Apple lovers rise up in the background).
If you're looking for some more fun, there's some new stuff on the Zune marketplace. The new software includes a Labyrinth puzzle game that looks potentially addictive, good ole' Solitaire which speaks for itself in terms of replay value and also Stopwatch; an accelerometer with excellent responsiveness.
Thanks goes to Crunchgear for the heads up.