http://www.ign.com/articles/2014/07/03/twitch-looking-into-3ds-and-ps-vita-streaming-apps?abthid=53b5cf9a85862cd429000021

Twitch integration is a major feature for the PlayStation 4 and Xbox One, and the company would "love to do" the same functionality on Nintendo 3DS and PlayStation Vita, though there's processing and server concerns holding that up.

Kevin Lin, chief operating officer for Twitch, talked with GamesIndustry about the rise of video game streaming on the service as well as the next destinations for broadcasting functionality. Lin said that Twitch is looking into handheld systems, in addition to PC and home consoles.

On mobile, we just released our first in-game integration, with Asphalt 8 from Gameloft," Lin said. "For now, we're going to be doing that game by game. Handhelds. That's something we'd love to do. On handhelds, it's more of a server/CPU concern, but we definitely want to do it. We want to build viewing apps, that's much less CPU intensive than broadcasting."

While Lin didn't detail any specific plans, it sounds like viewing apps are more likely possible on 3DS and Vita than built-in streaming functionality, which is available on PlayStation 4 and Xbox One.