You know all that rumor and speculation about Apple launching a subscription-based streaming music service? Forget it -- at least until the next rumor comes along. Bloomberg is citing three people with knowledge of private talks between Apple, Universal Music, Sony Music, and Warner Music to make purchased music more easily accessible to iTunes users. Two sources claim that an agreement could be announced by midyear. Contrary to popular speculation aroused by Apple's purchase of Lala, they're not talking about streaming music from Apple's new North Carolina data cen