It is about portlets.
google Tycho demo portlets and then in ARCHIEVED NEWS click projects and here click Tycho .When you click Tycho
you will see VIEW THE DEMO ONLINE
click in that and go to down of the page you will see
CLICK ON THE ONLINE DEMO.
here you will see 3 windows:
one of them is webcams images
and second is a set of producers
and the third is images.
What I wanted is for those 3 windows is to write a portlet code for each one of those.