I'm about to start a project that requires some simple YouTube non-write data operations, like gathering users playlists and videos. I read that the YouTube 2.0 API is deprecated, but I don't really want to use OAuth authentication required for API 3.0.
Does this mean that the GDATA API deprecated (in particular this: https://gdata.youtube.com/demo/index.html
Google's GData API for YouTube was deprecated on 2014-03-14 according to their api status page. This was after your original question was asked, but I'm leaving this here for other's (like myself) who are trying to keep track of which api is current..