advantage of using spring portlet mvc

hi,

Could somebody tell me what is the use of Spring portlet mvc compared to other portal development frameworks?

Spring Portlet MVC is a framework that is exclusively meant for developing portlets. Unlike other frameworks, it doesn't hide different lifecycle phases of a portlet.....making the framework more intuitive. Spring Portlet MVC is mirror image of Spring Web MVC, so if you have experience working with Spring Web MVC then you can quickly get up to speed with Spring Portlet MVC.

regards
ashish