Warner is withholding its music from the Nokia Music Store in part because of concerns its music is being traded illegally on Mosh, reports the Wall Street Journal in an article relayed by MocoNews:

"Nokia spokesman Kari Tuutti said Nokia could only remove content at the request of the content owners, although it does use automated software to monitor the site for copyrighted material," blogger James Quintana Pearce wrote. "Any and all social networks have problems with people trading copyrighted material, but keeping the content from a paying site doesn't seem like an intelligent way to compensate for revenue loss."

Between this and the Apple-NBC spat, it seems that the consumers are the ones getting shafted the most in these mobile media disputes.

Warner Keeps Music From Nokia Music Store Over Piracy Spat [WSJ via MocoNews]