Today I tried every single version of Cutetube and QMLtube available on the Maemo repositories - not one of them works properly.
I went to the lenght of trying that because the other youtube clients are also broken (but not supported anymore), and the latest devel version 1.8.2 brought back the asynchronous double audio track and introduced flickering coloured blurs for video, while still refusing to give my either for some videos ("video cannot be played").