Kufu - 5:43 pm on Feb 9, 2010 (gmt 0)
This sounds more like the integration of Google Wave into Gmail.
addendum: "If it catches on, it'll be good. I'm sure they'll start working this stuff into Gmail eventually." -Me
Apparently I said this to my cousin in October of 2009 (just checked my Google Wave account).
Who would like to know their future? Only $5. ;)