Nope, but the existing example can be adapted fairly easily to fit in any framework. If the minimal code changes needed to integrate PayPal into your workflow are too much, I would recommend using an "all-in-one" payment solution like FastSpring.
Your PayPal sample in ASP.NET MVC
Do you have your Paypal sample available in ASP.NET MVC? Or, does someone have it available online somewhere? Thanks..Saf