Judging by the ongoing out-of-stock situations it's safe to say demand for Google's Chromecast device remains strong. One of my local Best Buy stores finally had them in stock so I grabbed one. My one-word review: Meh. I don't regret buying Chromecast but I can't find a killer app for it.
If you're not familiar with Chromecast all you need to know is that it allows you to wirelessly stream content from your computer or mobile device to your TV. It's an indirect method, as the content on your tablet/laptop gets sent to your router and then over to the Chromecast device in your TV. On the surface, that's nice. After all, projecting video from your computer to your living room screen without a bunch of cables is handy. On the other hand, the apps that support Chromecast are limited. Anything in the Chrome browser works but few mobile apps are supported. That means I can stream games from my NHL Gamecenter subscription but I have to do so within the browser, not through the Gamecenter app on my iPad.
I'd love to see Chromecast work with PowerPoint. Most conference rooms have HD TVs but sometimes the right connection dongle isn't handy. It would be great if I could just plug Chromecast into the TV and project the deck wirelessly but that's not an option yet.
YouTube, Hulu and NetFlix all work fine as well, but what's the point? My Samsung LED TV has apps built in to let me watch streaming movies anyway. All I have to do is plug a USB WiFi stick into the TV and I have full web access. Granted, managing it with my TV's remote is a hassle, so Chromecast has that advantage since you control it with your tablet or laptop.
The only use-case I can think of that really lends itself to Chromecast is video-based training. Even though you can obviously do this on one screen or a computer with a second monitor, I see the benefit of having the instructor on a much larger TV, especially if there's a whiteboard or other region to focus on besides the talking head. Learning to code, for example, would really lend itself to the instructor, their source code and whiteboard on your TV and the programming environment on your computer.
I'm also surprised there aren't any great Chromecast hacks yet. If you search for hacks or novel applications you'll be disappointed. Chromecast seems like the type of device that hackers would love to enhance, and you'd think Google would fully support their efforts.
I'll still use my Chromecast, probably a few times a week. I also plan to take it on the road since at some point I'd like to think PowerPoint access will be supported. And since most hotels have complementary WiFi I should be able to watch NHL games at night via my Gamecast subscription on the TV rather than on my smaller computer/tablet screen.
So for $35 Chromecast is a fairly small investment but its limited functionality holds it back from being worth so much more.