"Apple, which has stumbled in its efforts to get into social media, has talked with Twitter in recent months about making a strategic investment in it, according to people briefed on the matter."

Every bit of substance that this article has, is stated in this first sentence. Anonymous sources like this, with no real corroborating facts, are usually indicative of PR people testing the waters for things that might happen. We already know that Twitter and Apple have a relationship, what new facts does this article have that indicate that anything worthy of discussion is happening? I doubt anything of substance will come of this.