It's been a few years since my last laptop. I just ordered a rMBP yesterday and will be using it as somewhat of a desktop replacement. My question is, what functions can it perform with the lid closed. Specifically: 1. Sync an iDevice wirelessly and update podcasts with iTunes 2. Backup to a TimeCapsule 3. Download Usenet files 4. Share an iTunes library with another Mac 5. Receive e-mail and sync with iCloud 6. AirPlay mirroring to an AppleTV Can it do any of those things, or will it simply put itself to sleep?