1. DisplayPort is a primarily computer-to-computer technology at this time. It is not meant to connect devices that don't have video. So, your Blu-Ray player wouldn't connect to your computer via DisplayPort, but it should work.
2. Possibly. The support might already be there, for all we know... just waiting for Apple to activate it. Once again, you misunderstand how DisplayPort works. An external Blu-Ray player will NOT have a DisplayPort connection.
3. Only Blu-Ray video that's ALREADY been decrypted.
4. All OSes have their bugs. Hey, that's what this forum's for! Search first, then ask if your search doesn't find what you seek.
What are the advantages of the iMac 27" with core i7 and the largest processor over the i5 and smaller processor.
I'm ordering today. My primary usage will be the new Final Cut Studio Pro 7 (Full Suite) and Logic 9 for both music and video.
I got "bombed" with the G5 2.5 water cooled dually Power Mac in 2004, I'm still in recovery.