Currently, we're rebuilding the admin site with
Castle MonoRail, but we've also done a little experiment with the
CTP version of ASP.NET MVC. Anybody interested can download it
here, or get the stuff from SVN: https://cuyahoga.svn.sourceforge.net/svnroot/cuyahoga/experiments/Cuyahoga-MVC.
I have some mixed feelings about it. At this moment, MonoRail is cleary the better (more mature) platform but ASP.NET MVC looks promising and it has the Microsoft label that will attract more people (like it or not).
Opinions?