Daydreaming about nabbing a Roku 3, but have a few Q's.

I have a Roku 2 XD and use an app called Plex to stream things from my PC to my TV via wireless. Basically, Plex turns your computer into a little media server. However, I am unable to mirror my screen from my computer onto my TV without a big ol' HDMI cable. I don't know the exact specs on the Roku 3, but I would doubt you would be able to do this.

You can't currently do this. http://gigaom.com/2013/02/27/roku-airplay-miracast/ that this function will be coming soon to some Roku devices (how soon, I don't know). Why can't you just take a VGA or HDMI out of your computer and plug it into the TV? Presumably the appeal is in not having to have your computer physically proximate to the TV.

I just bought a Roku 3 to run Plex. It does a great job playing downloaded video. Can't comment on screen mirroring, that's a surprisingly difficult problem. I think an Apple TV can do that with AirPlay Mirroring to a Mac, with degraded quality. There might be a Roku app store app that'll do it too, haven't looked.

Apparently the Roku 3 hardware supports Miracast, which is Broadcom's answer to Apple's Airplay, although there hasn't been a software update to enable Miracast support yet and Roku hasn't officially announced when that will happen. In the http://gigaom.com/2013/02/27/roku-airplay-miracast/, they should video being streaming via Miracast and Angry Birds being played, but not faster twitch FPS games like Bioshock, so I remain skeptical about latency until it's officially out. On preview: Enn beat me to it.

1. yes 2. no Use the aforementioned Plex, works great. I would suggest getting the model with a ethernet jack. that way you're going from Your laptop to router via WiFi, but from router via ethernet. As far as mirroring, there are devices that do (Roku does not) that but i don't know how well it would work with gaming.

Why can't you just take a VGA or HDMI out of your computer and plug it into the TV? That's what I'm doing now, but its a pain in the butt and my laptop is often 20+ feet from my TV. I'd love to just turn on the TV and have access to whats on my laptop. Sounds like Plex would work, but Screen Mirroring is still a dream. The headphone jack on the remote, though. That's a killer feature for those of us whose ladyfriends fall asleep in the middle of a movie.

Need 1 :: Even though you have a PC, I believe you can to do this with AppleTV. You put the file into iTunes and tell iTunes to stream to the AppleTV. I do this at my place (with my Mac) and it works nicely. You can also use the Apple remote to play/pause/choose another file, which is handy for lazy days on the sofa. Need 2 :: Not supported by AppleTV, but http://www.airparrot.com supposedly lets you screen mirror from Windows. I haven't used it and cannot vouch for it; looking around the web suggets it might not be able to do enough fps for something like Bioshock. Perhaps if you have a friend with an AppleTV, you could give it a try?

Seconding looking to see if AppleTV will work with iTunes on your PC. We got one for the back bedroom because we were propping an iPad on a music stand to watch Netflix while riding exercise bikes, and the sound wasn't strong enough. But the AppleTV streams Netflix and Hulu and is connected to the server where my husband has stashed all of our ripped DVDs (I swear, the man is totally averse to watching from a physical disc if he can rip it and stream it), and it also streams directly from the iPads if we've got media on them like video we've bought from the Great Courses, or YouTube...which technically has an app on the AppleTV, but it's hard to find stuff easily with it. My husband says that you can stream games from fairly recent Macs running Mountain Lion--just mirror to the AppleTV. That might include sound, but he hasn't tried yet. He also says you might be able to hack the AppleTV to allow your PC to do it, and there's an active AppleTV hacking community (as in lots of people doing it, as opposed to one specific place) out there on the intarweebs that should be able to tell you how, if it's possible.

I think this is what http://en.wikipedia.org/wiki/WiDi and Miracast are for, so if the Roku 3 enables Miracast you should be able to do it. Alternatively you could test a http://www.dlink.com.sg/products/?idproduct=490&idCategory=243 and see if it handles the games with a decent framerate? As I understand it WiDi comes built in in the new Intel chips [Ivy Bridge] and basically replaces the HDMI cable with a custom WiFi connection. So Airplay...