Ok,
here is my proof of concept google chrome extension. This works like a champ for me. It adds 'Roku' links to album and playlist pages, then tries to find all the tracks in the page and adds Roku links next to those too. It doesn't work everywhere (for instance the dynamic search boxes), so you have to browse to an album or playlist's page directly to make it work.
Example: On
http://mog.com/albums/mn44159503/el-guincho/pop-negro I get a Roku link next to the album title that plays all tracks in the album, and individual Roku links for each song. Same deal for
http://mog.com/playlists/86773.
Go the extension's options to set your Roku's IP address first.
It does uglify mog.com somewhat.
Here's the source in case anybody who is better at js and html than me wants to make it prettier/more useful.
Btw, I cribbed the Roku-contacting parts from remoku, so thanks for that app.
🙂 If somebody could try this out and let me know if it works, that would be great. I thought I might have cross-origin problems with hitting the Roku's ip without putting explicit permissions in the extension's settings, but it doesn't seem to mind?