Pandora works text entry does not. Its a generic issue with skyfire...it can enter text in flash text fields.
I may have a terrible workaround, but I haven't been able to test it. If you type in a band, you can click to more options on it, and edit the station. That will take you to a new page, for example, dispatch's is
http://pandora.com/stations/2aa1db29...74869f84047ca8
That page has a play now link. Its possible that play now link may work for the band you want, if you enter it into pandora.