Plumtree Software released the Plumtree Corporate Portal 4.5, which broadens Plumtree’s Internet architecture to search multiple content indexes in parallel, extends single sign-on to the applications integrated in the portal, and delivers Gadget Web Services to wireless devices. The Plumtree Corporate Portal 4.5 also features a more efficient, intuitive user interface. The Plumtree Corporate Portal 4.5 supports single sign-on technologies from IBM’s Tivoli Systems, Netegrity and Oblix. With the Plumtree Corporate Portal 4.5, Plumtree extends the Internet architecture from application integration to search. The new platform uses SOAP to communicate search commands via HTTP in parallel to search engines running on any platform, anywhere on the Internet. Plumtree’s new Internet architecture for network search will be able to incorporate results from AltaVista Internet Search (both Web and multimedia), Inktomi, Microsoft SharePoint Portal Server and other content indexes. The Plumtree Corporate Portal 4.5 features the Plumtree Wireless Device Server, which distributes Gadget content and services to wireless devices, such as mobile telephones, wirelessly enabled Palm handheld computers, Pocket PC-based personal digital assistants, BlackBerry Wireless Handhelds, and other handheld computers. The Plumtree Corporate Portal 4.5 is priced on a per-user basis, and is generally available now. Plumtree is offering customers a service upgrade package and upgrade documentation.