I am going from memory. I can anchor the memories as September 2005 till early 2006 as it was a memorable time for me. I spent that time working out of a Palo Alto garage working on a "web 2.0" web browser, Flock, with a small group of people that included a few who had previously been at Eazel and were still passionate GNOME participants.

Thinking further on it now, unrelated to that work, Jeff Waugh @jdub would be person I'd go to for receipts.

If I was searching the web, I'd be looking for references to Gnome ToPaZ with topaz being a play on ThreePointZero:

"When the prospect of GNOME 3 was first discussed by developers in 2005, the concept took on a life of its own among the users who imagined that it would be an audacious reinvention of the desktop with completely new interaction paradigms and a new kind of user interface. This pie-in-the-sky vision was referred to as ToPaZ, word play on the phrase three-point-zero. " https://arstechnica.com/information-technology/2008/07/gnome...