Portlets based enterprise application

[gordon2006]

Hello,
I want to develop an enterprise application based on portlets and would like to have advice on the feasability.
I would like to design it this way (example) :
1 page is for orders management
In this page, 1 portlet displays orders list.
When the user clicks on an order, it opens :
- 1 portlet for order header
- 1 portlet for order spreadsheet
Do you think such architecture is feasable using jsr168 ? future jsr 286 ?
I would like to have these portlets designed such as it would be possible to deploy them on different portals (jboss portal + competitors).
In advance, thank you for your advices.

[antoine_h]

yes, you can do this...
for using this with several portlets container, the specification is there to be able to do it.
you have then to be very carefull in programming your portlets so they are 100% compliant to the jsr.
(it is a great temptation to build some things that are not).