Today, we are excited to announce the release of the Web Services for Remote Portlets (WSRP) Toolkit for Office SharePoint Server 2007. The WSRP Toolkit for SharePoint provides sample code for producing WSRP conformant data from SharePoint lists and libraries. External portal platforms (e.g. BEA AquaLogic Portal, IBM WebSphere Portal, SAP NetWeaver Enterprise Portal etc.) can then render SharePoint data natively through their WSRP consumer portlets. The Toolkit is available now for download from the MSDN Code Gallery.
Source : blogs.msdn.com/sharepoint