Capetonian,
I thought that too.
But its one of those Googlisms.... you know where they do stuff differently.
A quick Google would have yielded you this page....
http://gmailblog.********.co.nz/2008...from-your.html
(Stupid PPRune Link changing..... replace the stars with b.l.o.g.s.p.o.t .... without the dots)