"Play To" is the ability to right-click a media file in Windows 7's Media Player and send it to any networked gadget appearing in the pop-up menu. It's sweet now, but it could be huge.
In a raft of announcements, Sonos today confirmed the existence of the $99 ZoneBridge 100, and launched two more PC-free music-store options on the system, including Napster and Best Buy's new Digital Music Store.
Today, the FCC leaked some info about the Sonos ZoneBridge, a wireless device with little or no practical details. But people familiar with the system understand that such a product could fill two specific needs:
• Since Sonos requires one hard Ethernet connection to a router, the current system requires you to use up…