As crazy as it sounds, this is more than simple idle speculation.
From the link:
Last month, Apple CEO Steve Jobs hinted that a big acquisition is in the works—that is, Apple might tap into its $50 billion war chest. I’ve been trying to wrap my mind around $50 billion ever since.
Also from the link; not quite a smoking gun, but it does give you something to think about:
The more intriguing acquisition target is Facebook. Jobs is probably kicking himself for not thinking up social networking. He fancies himself a cultural revolutionist wielding technology, and that’s exactly what Facebook and CEO Mark Zuckerberg have become for this next generation.
Jobs and Zuckerberg had been spotted enjoying a stroll in an obscure park near Palo Alto shortly before Jobs suggested a major acquisition may be in the works. This bit of news, reported by the Los Angeles Times, set off a whirlwind of speculation that Facebook was the target.