google voice dropping XMPP

[David Rysdam]

Joshua Judson Rosen <rozzin at geekspace.com> writes:
> And this all reminds me..., I liked this comment that I recently found,
> by Daniel Bo <http://slashdot.org/journal/257448/why-so-much-nih>:
>
>    "I'm still confused as to why Microsoft, Yahoo! and Google don't
>     agree amongst themselves to use their own services + XMPP + some
>     plugins to openly replicate Facebook and immediately become big
>     players in the social business. When your competition is eclipsing
>     you like FB is, you need to start making some hard choices. There's
>     no collusion if it's an open platform, right? Old and slow. Old and
>     slow."

In what field does FB compete with MS, Yahoo or Google? (And in what
field does Yahoo compete at all?)