Apple is asking owners of Internet radio stations, such as those featured in the existing Radio gallery of iTunes, to submit "cover art" for their station -- following in the footsteps of an earlier art request for podcasts, and suggesting that third-party stations may be joining iTunes Radio and leaving the desktop iTunes application at some point. The artwork requirements call for a 1400x1400 JPEG or PNG file, which will be added to a station's iTunes Radio page. The current beta of iTunes Radio doesn't yet support third-party internet streams.
