or maybe it means you can use your msft based citrix or rdp to connect to the msft terminal server/ibm server/software and oracle database software. put it all on a 5 way ibm iseries server using neoware thin clients/thinclient pc software and use msft productivity apps. would also allow you to boot an instant messaging/sip voip call from within the msft or eclipse based application...use the thin client to manage your iseries...a replacement for the old as400's from ibm. you can either use a x86 or linux client device to connect to the terminal server. I think certified means all the stuff works together/interoperable...see the ibm center for msft interoperability. siebel/oracle/peoplesoft/ msft invested a ton of money just before oracle did it's acquisition. just like they did with att before comcast acquired them.