Uh, that's a pretty strong requirement here.
The Chinese devices I mention require either Wifi or LAN connection. But what you're asking for sounds far fetched. How do you expect your 4G device to connect to a device with no connection? Bluetooth? Ad-hoc wifi? I mean, technically it is possible, but most of these apps expect you to be on a local network through Wifi or LAN, unless we're talking of a very integrated experience (e.g. ps3 and Vita, which use some sort of adhoc Wifi I believe). Or are you thinking of paying an additional 4G subscription to a dongle?
The App cheapcast that I mention also requires a local network, either LAN or Wifi, I believe.pretty sure it doesn't work outside of a local network.
Also pretty convinced something like Chromecast will also require that.
IMO You should get a Wifi router to your brother before thinking of getting him miracast support. Or go with a fully integrated solution, where both the phone/tablet and the miracast receiver are made from the same company, and are guaranteed to work together (e.g. iPad + Google TV, but even that I think requires a local network)
11-06-2013 10:04 PM