Apple to buy Twitter?

While Twitter has maintained its stance that it does not want to sell (they rebuffed Google's attempts recently), there are reports on sites like TechCrunch that cite sources who say that Apple is trying to buy the microblog for $700 million.

"Apple is in late stage negotiations to buy Twitter and is hoping to announce it at WWDC [Apple's World Wide Developers Conference] in June," said TechCrunch's unnamed but "normally reliable source."