WebWork + Struts = Struts Ti vs Spring MVC

I guess you already know this:
http://blogs.opensymphony.com/webwor...ng_struts.html

And there is Clarity:
http://opensource2.atlassian.com/con...ay/WAG/Clarity

I wonder how the spring team take this and how this will impact the Spring MVC community. Struts Ti has Struts, WW and BeeHive page flow and seems to be very promising. It seems that there will be only two playes in the request driven web framework field: Struts Ti vs Spring MVC + Spring Web Flow.

I do not know what's going on with Clarity. It seems that Spring team is kind of more willing to keep Sping MVC and WebFlow separate rather than merging into Clarity. Maybe that's why WW and BeeHive merges with Struts without Spring MVC?