What is Turbine (vs Struts)

I have had a look at Struts and hear it's pretty good but the Jakarta project also mentions Turbine as
"A model-view-controller framework for constructing web applications with either Velocity or JavaServer Pages"
Surely this is similiar to Struts, or am I missing something?
P.

Ted Husted has a Struts FAQ kick-off that contains links to some user opinions about these differences. Specifically, go to the URL http://husted.com/about/scaffolding/kickstart.html#turbine to see some links to comparisons of Struts and Turbine. An alternate URL for the same information is http://www.jguru.com/faq/view.jsp?EID=471938 .