SOAPSonar vs. SOAPUI

Here's an interesting article that talks about SOAPSonar vs. SOAPUI.

SOAPUI vs. SOAPSonar

SOAPSonar has been dominant in the SOA Testing space and is the only product that provides comprehensive SOA Testing across Functional, Performance, Interoperability and Security domains. Crosscheck Networks, the provider of SOAPSonar, recently acquired Forum Systems. With this acquisition, Crosscheck Networks now provides a wide array of integrated product offerings that comprehensively covers services life cycle across building, testing and securing SOA deployments.

Here's another article that highlights why a testing tool that is commercially built is better suited for SOA Testing: Limits of Open source SOA Testing tools.