The long-awaited tech IPO of the year — perhaps of the decade — is on. Facebook will file its paperwork for an Initial Public Offering on Wednesday, according to a report from the Wall Street Journal.

If it comes to pass, this will be the largest tech IPO in history, yielding around $10 billion for the social network. The next-largest tech IPO is Infineon, a German company that raised $5.9 billion in 2000. Google's 2005 IPO, as big a deal as it was, didn't even reach the $2 billion mark.

Details are scarce, Facebook isn't commenting, and the WSJ's source is unnamed. But the Journal has a track record on such stories that is hard to dispute. The $10 billion share offering would yield the company a total valuation of $100 billion, the paper says, which is right in line with where we expected it to be.

Facebook halted its trading in secondary markets for three days earlier this week — the strongest signal yet that an IPO is coming soon.

An upcoming share offering would also explain why Facebook has been so keen to get its product offerings in place. This week the company announced it would be rolling out its new profile template, Timeline, to all users, at a speed that left us scratching our heads. Last week it revealed 60 apps that are tightly integrated into Timeline, and announced a process for developers to create more Timeline apps.

If and when Facebook does file its S-1 paperwork, it will be forced to enter a "quiet period" — without product announcements, interviews or any other public statements.

The WSJ also reports that Wall Street giant Morgan Stanley will manage the offering, and that Goldman Sachs will be "intimately involved." That's a blow for Goldman, which managed a billion-dollar private share offering for Facebook this time last year.

Are you excited about Facebook finally going IPO, or will being a public company change it for the worse? Let us know your thoughts in the comments.