With ECC 6.0 the WebDynpro for ABAP will be available. After converting my well-known ABAP-dynpro screens to WebDynpro I will have the possibility to expose all R/3 functionality from within the portal.
Two years from now the Enterprise Services will be there. What will be the reason(s) for using enterprise services instead of WebDynpro for abap to make R/3 functionality available in the portal? I think at the end both functionalities can co-exist but what are the criteria to use one or both methods?