I just picke up one of these Roku SoundBridge 1000 boxes to fiddle with. So far, I’ve found it to be pretty cool and relatively easy to setup. This version is WiFi (b) enabled, so I just find some speakers and a power plug and I’m up and running anywhere. It is reasonably easy to go, now with the Windows UPNP functions working.
The downside, as it always is for me, is that none of the server software that talks to the Roku can handle the volume of music I want to play. Simply put: they choke. Currently the Windows Media Connect service running on my home server is pegged at 100% CPU utilization and over 163MB of memory usage. This is after it has been trying to digest my music for the past 6 hours or so. Guess there is still room for improvement with these devices. On the other hand, iTunes and SlimServer do work with smaller quantities of music, so it isn’t all busted dreams.