Patent: machine-to-machine instant messaging

Isn't this just what the OSI model does, but at the application level?

Well, to be fair seems like one side talks like for instance 802.2 and the other in X25, with a software layer in between --adapter pattern?

Can't believe such patent was granted.

This sounds like taking the design of internet and applying it to the network of devices at home. Awesome! Except I find it disturbing that a patent was issued for something like this.

Don't apps like Nagios invalidate this?

Here's the full text of the patent:

http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=H...

Is there any prior art on this?

very excited to see Tempe at the top of a patent, that whole area deserves some recognition.