"Their initial effort, a "software router," will let workers send and receive information instantly through Web browsers, cell phones, and email clients; at the same time, the information can be sent to traditional enterprise applications. KnowNow’s software can guide and route the data to the proper final destination."
It’s maybe a little clearer from Knownow’s site (they changed their copy to something more meaningful). The part about EAI is probably reflecting the usual maturation process, from coming with a concept, to turning it into a product, then trying to find customers that will buy it.
12/09/01 update: Jon Udell: The Event-Driven Internet
10/24/02 update: Jon Udell: The publish/subscribe Internet