"I think they don't want to talk about open source in
production because it's such a big threat to their business. But
really I think IBM is missing a big opportunity with Mule. At least
half of our customer base is using Mule as a front-end broker and
packet shaper for [IBM's MOM middleware] MQ. In other words, there
are a lot of IBM customers out there with MQ who prefer to use Mule
as their ESB rather than IBM's own ESB. IBM really ought to make
friends with us because not all of these customers are going to buy
WebSphere ESB."