Google Betas - What's the longest?

Google buys Deja.com...

[BillyS]

What's the longest beta Google's got running now, I just found this:

MOUNTAIN VIEW, Calif. - February 12, 2001 - Google Inc. today announced that it has acquired Deja.com's Usenet Discussion Service. This acquisition provides Google with Deja's entire Usenet archive (dating back to 1995), software, domain names including deja.com and dejanews.com, company trademarks, and other intellectual property. Financial terms of this transaction were not released.

That's five years and four months as a beta or 64 months. Is there anything longer?

[inbound]

Longest Beta: Google Search!

[zCat]

Oh, it's reached beta already?