I'm a gadget kinda guy and l'm always on the lookout on how to do audio or video easier than what I'm doing now. Google snuck the Chromecast in on me so I wasn't in on the initial release. But, have no fear I ordered 2 of these devices. They both came in last week and surprisingly 1 of them was DOA, in that it wouldn't connect wireless. Fortunately Amazon's return/replacement policy is great.
So I connected the other one to an HDMI port on my Denon AVR X1000 AV receiver and my TV recognized it right away when I went to the HDMI port on the receiver. I go through the initial setup routine including adding the Chromecast app to my Xoom tablet and to my PC laptop. Both recognized the dongle.
I called up Google Play Music on my tablet and in the upper right corner, there is now a box that allows Play Music to stream it's music to the Chromecast dongle. When you do, you can control the start/stop/pause of the song being played through my AV receiver and on the TV, the album cover of the song shows as well as the song title and artist and it goes into screensaver mode. I never fully took advantage of Play Music but now I plan on uploading more of my favorites to it.
YouTube streaming is great. I called up the YouTube app on the tablet and loaded Super Bowl XLVII that is on Youtube and streamed it the TV. No issues whatsoever as far jerkiness of the video or anything, perfect. From the YouTube app you can pause/restart the video. Both YouTube and Play Music you can leave the apps and do other things with your tablet and it will continue streaming what it was last told to do.
I don't do Google Play Movies & TV or Netflix so I couldn't test them out. I may try Netflix later but that's not high on my priority list. I did load Google Chrome on my laptop than loaded Hulu Plus and was able to stream various video's from the laptop to the TV with no issues.
Overall I'm very pleased with Chromecast and yes it's currently limited on what it can stream but I'm sure more developers will jump onboad and the price of $35 is great. I currently have a PC connected to my TV through an HDMI port on the AV receiver and it would be nice, never have to turn it on to have access for audio or video on my TV.
A little help would be appreciated on how I can play local files in a Chrome tab. Many say you can by just searching 'chrome local files' and a plethora of howto's, Maybe I'm missing something as I couldn't get it to work on a W8 or W7 machine. In doing so, I should be able to stream local video files (from my NAS) in Chrome to my TV. Which will be huge!