https://www.engadget.com/2008-06-24-nokia-dishes-out-os2008-feature-upgrade-for-n810-n800.html
Nokia dishes out OS2008 Feature Upgrade for N810 / N800
Jun 24, 2008 - The first official OS2008 update came to Nokia's internet tablets late last year, and those yearning for yet another can finally breath a sigh of relief....
nokiadishesfeatureupgrade