Googles Chromecast is arguably the easiest way to broadcast mobile content to a big screen, but its hardly the only game in town. LG has released Connect SDK, an open source software development kit that allows developers to create apps that will have Chromecast-like capabilities that will work across LG Smart TVs, the Amazon Fire TV, the Roku 3 and Roku Streaming Stick and even the Chromecast. In a way, LG releasing Connect SDK is very similar to Google releasing the Chromecasts SDK in February.