Thanks, Marxian. I replaced the /opt/ file you provided, and the way Cutetube works for me now is that, if you select a video from a list by pressing the description, it takes you to the info page of the video, but does not play the video. On that page, the related video tab loads data and works as anticipated. The trouble is that if you play a video in either orientation, the related videos button is totally nonresponsive, though the comments button works as it should on that same page. Weird. I did find that, if you got to the working related videos page as descibed above, then the videos would load without crashing.

More not-so-good news: the YouTube event feed issue with duplicating entries is still happening on my device, though I still find the Daily Motion videos on the event feed to be totally free of the duplication error.

I hope that this helps you troubleshoot.