Upgraded to Mountain Lion to get Airplay Mirroring but evidently my 27" iMac is not compatible. What a joke! If Apple is going to advertise mirroring for Macs it should work on all recent equipment.
Looked up how to activate Airplay Mirroring but don't get the icon. So evidently my 27" iMac is not compatible. Mirroring seems to be what we're all most interested in upgrading for but it's available to a limited audiance. Jeez, does Apple really expect me to buy a new iMac to get this functionality? Sounds a lot like Microsoft.
iMac, Mac OS X (10.7.2)