Spotify's unlimited music service could reach the US soon but only under special deals that might involve Android, a rumor insists today. After delays from music labels that wanted only a paid model, TechCrunch hears that Spotify has allegedly struck a deal where a "very limited" number of users will have access to the free, ad-sponsored subscription available in Europe. It's not certain whether the rest would have access to the paid Spotify Premium accounts, which have usually cost about $14 per month and drop ads.