Great News !!! Recently MS SharePoint product team has released Web Services Remote Portlets (WSRP) toolkit, This toolkit provides developers to expose easily sharepoint data to non microsoft portal products such as : AquaLogic Portal, IBM WebSphere Portal, SAP NetWeaver Enterprise Portal…etc.
Now if you have any portal in your organization and you want to expose sharepoint data in two different ways and MS also released the source code for both of them under MS Public License.
**Announcement – Sharepoint Product Team:
Hope this helps.