I'm a great of your port, but have three suggestions for you:
* Music addon: I don't think it's very good to ask the users to download an older version so thath they can listen to music. My idea ist to create a new music_addon.zip archive which includes all needed file to listen music.
Simply host it onto your website and write into the readme.txt "... if you want to listen to music, simply download and extract the music_addon.zip.". Simple. Easy. Done.
* Directory: Currently I'm using the custom dingoonity firmware (v1.2b) with all my games onto my sd-card - so I can use them in Dingux / OpenDingux, too.
Could you please edit your next release so it's possible to store the game and data files (iwads, pwads) onto a different location or that the game will only search in the current folder or sub-folders for the data files?
* Game addon: Currently I'm playing three user mods (hacx, dtwid, b2saturn) but with your port I can only play one of them. Could you please add support for more than one user mod?
Thanks for your feedback.