Lately just announced  the Zune HD Device, with impressive feature powered NVIDIA Tegra, capable of Wi-Fi compatible, with wireless marketplace.. and so as more.

Zune’s specs:

-~3.6-inch OLED full touchscreen
-NVIDIA Tegra powered
-4GB, 8GB, 16GB and 32GB versions
-HDMI Connection to stream straight to your TV
-HD Radio
-Web browser
-Wi-Fi compatible, with wireless marketplace
-Released, early fall
-International release of the Zune device itself
-Home AV packs, Car packs, Charge packs