David Caulton clears some misconceptions at Zunester:

• Zunes have 802.11 b/g wireless built in, but they will not (at launch) connect to the Internet via your home wifi network.
• Zunes cannot download songs over the air from the Internet.
• Zunes can be set up as "ad-hoc" (Zune to Zune) connections to one another. This enables the following scenarios:

1. You can search for nearby Zune owners to interact with.
2. You can send them a song, album, etc... for a 3-day/3-play trial period. Songs come over with metadata and album art (neat). After the 3 days or 3 plays are up, the song gets deleted from the Zune on the next sync, but the information about the song stays in a "journal" on your PC for later purchase or acquisition.
3. You can send them photos for unlimited viewing (and these can sync back onto the recipient's PC).