Captivate Glide works with live streams exceptionally well.
I do own the Glide and I've watched several live streams so far... Not only does it but it seems to do it with ease. Guessing that's the dual core and 1gb of ram at work (which frankly would apply to most of the newer, higher end phones). The Glide is the best all around phone I've ever owned! Typing on it right now actually.