Heh, I was thinking the same thing.
Even though everything is in place, the
JSP editor coughs up on the custom tags, and it's not allowing you to reference the renderRequest or renderResponse, or any of those 'implicit objects' that are supposedly available if use the portlet custom tags.
If you look at a few of my tutorials on creating JSPs with IRAD on my website (check out my signature links), you'll see the same error message. Still, when I deploy the apps, they all deploy fine.
-Cameron