Or at least have related functionality?
From to jameskyton.wordpress.com:
Expect to see a version of Zune (or as I like to call it Xune) that doubles as a XBox portable in late 2007/early 2008.
From zuneboards.com:
Microsoft Corp…will introduce video games for its Zune music player within 18 months
From wham.canoe.ca:
Right now, neither the iPhone nor the Zune looks like much competition for the DS; then again, no one’s ruling out an iGame or an Xbox portable sometime in the future.