Image via CrunchBaseTED Air is one of the many different TED clients for Android. (There's also TED Talks, and TED T). This one seem to be the top of the game, as it supports selectable subtitles, search, and of course, share.It's not bad, and the interface is pretty polished.
As these features are mostly the same, it's down to personal preference. Try the other two.
http://www.appbrain.com/app/ted-air/com.ogqcorp.tpa
