On: Xobni launches 4 partnerships that will change Outlook forever

looks like someone is hoping for a microsoft yahoo merger soon.

Didn't microsoft already try to buy them?

Yes, they turned down a large offer from Microsoft which at the time was debated on HN as either indicating an ace up their sleeve or sheer stupidity.

It was $20m[1], which seems large to me, but I seem to remember the argument being made that it was likely too small a return to get their investors to agree to it.

[1] http://www.techcrunch.com/2008/04/30/xobni-walks-away-from-a...