Hello.
Would be possible to add Pithos Pandora linux client to Rune Audio UI?
http://pithos.github.io/
This client requires a free Pandora login, however, it is able to leverage the API in such a way where you do not get ads nor inactivity time-outs and have unlimited skip, channel changes w/o ads. I've been using this on various flavors of Linux for 5+ years, works great.