They need to have the ability to open browsers with Chromecast, especially when using WiFi sources that require one to sign in via their website before being able to use the internet. (The device I have has a temporary "browser", but it hardly works) I like to bring the Google TV Puck with me when traveling, but when using the puck, two step wifi verification usually hits me with "You Don't Have An App That Can Do This" when trying to use the "browser" that pops up.