I use the Google plus ap on my Gingerbread HTC Thunderbolt. I uploaded a couple of videos to my friend stream and I can watch them on the computer but my friends and I can't seem to watch them on our android phones. the google plus app is treating the video files like a picture. I see a "play button" on the image and when I click on the play buttion it just opens that link as a picture insead of play with video. I searched Google and didn't see anyone else with this problem.
I had this same problem on my Evo 4g LTE. When I clicked on the videos in the Google+ app it would take me to the phone's browser and then just open the file like a picture. Once it opens the browser and shows you the file... click the menu drop down in the top right corner and make sure "Enable Flash Player" is selected. Once I did this I could watch the videos. You may have a different problem, but it's worth a shot.
