The receiver is just for Audio, gonna need an Apple TV for Video.
Yes I'm new to Airplay (6weeks) and totally enjoying it. I have a RX-V473 and an Airport Express which drives an amplifier.
With respect to Airplay: So far the Airport Exress has lock up twice and the RX-V473 locked up once. I haven't yet figured out what caused it. Iwas playing with my network prior to the lock up so not sure yet whats the real problem. Both of these units are on LAN lines and go thru at least one switch. Next time it locks up I'll run a direct line to my router's LAN port to isolate the problem.
The RX-V473 has been great, I love the network stand by feature. It would be nice is the nework operation would have its own shutdown setting as it takes 2 hours right now to shut down after I stop playing Itunes.