Let the hive mind of Engadget get that for you.
"What is the best wireless surround sound speaker solution? I have a home theater where running wires is just not feasible. I have my own speakers, so I don't want a system that has speakers with integrated wireless. I've done a far amount of research and have only come across a few companies that even offer a reasonable solution: KEF, Kenwood and Rocketfish. Is there anything else out there? What do you recommend? Thank you!"
Is displayport backwards compatible with HDMI?
It's not electrically compatible but it is data compatible. That is, you can make a device that receives an HDMI signal (even with HDCP) and connects to a DisplayPort monitor. I believe you kinda sorta can do it the other way around but it gets more complex.
Commenting on the article:
DisplayPort is unlikely to take off with home entertainment systems like TVs, because HDMI handles TV data without any problems and there are some features of HDMI, such as bitstreaming of Dolby and DTS codecs, that DisplayPort doesn't do, and because HDMI has already entrenched itself in the market.
In the computer market, however, VGA is still the de-facto standard despite the best efforts of those pushing DVI, and it's possible DisplayPort may take off there. DisplayPort supports a lot more "computer" features such as USB.
In terms of data rates, there's not much between them. DisplayPort is about 8-9Gbps, HDMI is fractionally higher at 10Gbps. You're not going to find many screen sizes/depths/framerates that work with one and not the other.
So, bottom line, I'm not sure it'd help the article to include DisplayPort figures. DP is going to be attractive in the computing field if at all (which isn't EHD's area), HDMI is the relevent technology here.
HDMI : Best
DVI : Old Sit
DPort : Crap