A New York Times blog reports that Apple is currently in negotiations with music labels to offer more mobile music content via the iTunes Store.

One executive familiar with the negotiations claims that Apple’s hoping for “a big launch in June,”. According to the article Apple wishes to offer iTunes store downloads via the mobile network; currently iTunes Store downloads are only available on the iPhone when connected to WiFi.

With expectations high for Apple to release a 3G iPhone in the coming weeks it is expected that Apple wishes to take advantage of the new over-the-air speeds and offer music store purchases. However the report notes that music labels which to charge more for music sold over the cellular network.

Apple is also negotiating for answer tones to be sold on the iTunes Store.

“The company is also hoping to add answer tones, also known as ringback tones—songs that a caller hears instead of the ‘ring ring’ sound while waiting for someone to answer,” the report says. “In some cases, these command an even higher wholesale price than ringtones.”