PDK Vs J2EE application

Hi,
We are in the process of re-designing our "External facing portal" which has many PDK based applications currently. We plan to develop all the applications with a new design. What would be the best option for such portal -SAP PDK or J2EE applictions running on SAP portal or Webdynpro (may not be a good option for external facing portal) etc.
Please advise.
Thanks,
Hari

Did you try asking SAP about their strategic web technology for external scenario? When we asked, we got a confusing answer.
I would look in to developing JEE applications using JSF as I have heard that SAP E-Selling applications are either in the process of being re-written in to JSF or are already being re-written.
I am not sure PDK is the right technology.
kumar

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Ques 1. When I deploy a J2EE application on Web AS , I dont get any login screen. How can I make sure that if a user wants to access this J2EE application he should get a login screen and provide his login credentials first, only then would he be able to access the J2EE application.
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PDK Vs J2EE application

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