After speaking to numerous sources close to the rumored Apple-Beats acquisition, Billboard has cited five things said to be holding up the deal: complications around Apple integrating what would be its largest acquisition in history; the deal was never finalized, and thus the leak was premature; Apple reacting negatively to Dr. Dre’s celebratory (and drunken) YouTube video; concerns around how to integrate Beats’ Dre and Jimmy Iovene into Apple, post-acquisition; and questions around the value of the Beats Music asset, and thus the overall price of the deal. [Source: Billboard]