Portlets without Portal System: Possible?

[Andreas Schildbach]

Hello everyone,

I am developing and operating a web-application for playing classic 
strategy games (http://3moves.net).

As I am always open to new promising technologies, I am thinking about 
evaluating portlets. I am planning to wait until Pluto is finished and 
Spring 1.3 is out (which will include portlet support) and then give it 
a try.

But I don't want to switch over the whole application from my own simple 
portal system (based on a layout.jsp which includes several fragments) 
to a fully fledged Portal System like JetSpeed. Is it possible to just 
include a portlet into a web page, with a tag like <jsp:include/> or 
<c:import/>?

I realize that portlets expect some environment, like a user record. On 
the other hand, I doubt that I would use this data in my portlets 
anytime soon, and maybe there would be the possibility of writing an 
adapter?

Regards,

Andreas