Non-ISP companies multi-homing?

Does anyone know of any non-ISP companies that have decided to
multi-home? Is this a major trend for non-ISP companies running
mission-critical applications on the Internet?

So far, I only know of a couple, with PointCast being one of them.

Lincoln Silver
FlyCast Communications

Is this thread dead yet?

If not, here is my 0.02 (baht)

Lots. And most of internal support staff consider themselves to be
"vertical niche" ISPs with a closed user base. In the days of outsourcing,
it is a reasonable viewpoint to maintain.