Sonos users should not upgrade to Mac OS X Lion
On the support section of the Sonos website, the company is telling its customers that the Sonos system is not compatible with MAC OS X Lion.
The company is recommending Mac users do not upgrade to OS X Lion and remain with the current release of OS X until Sonos can fix the problem.
Thanks to DancesWithLysol for pointing this out on the Apple Lion thread. I am creating a separate thread specifically for Sonos users.