I read this article a couple of weeks ago about Sun's new strategy to try to get current / former BEA Weblogic users to move over to SUN Java CAPS, SUN's SOA Platform.
Sun tries to convince people to start using their platform with some kind of simple SOA TCO calculator. To my opinion a little to short to conclude the TCO of SOA based on the parameters (# of sockets (per core), # of employees and # of years).
Well it might convince people to start looking a little closer to investments in SOA, which is good. Probably the outcome will be that they will conclude to go for SOA players like Oracle - BEA.