JXTA is:
Introduced by Sun Microsystems, Inc., Project JXTA, the award winning technology, is a set of open, generalized peer-to-peer protocols that allows any connected device (cell phone to PDA, PC to server) on the network to communicate and collaborate. Project JXTA is an open source effort that involved the developer community from the start.
Can do:
Our vision is to enable developers to create innovative distributed services and applications using the JXTA technology. Project JXTA code can be used to create applications and services that enable consumers to:
Search the entire Web and all of its connected devices-not just servers--for needed information
Save files and information to distributed locations on the network, not just to local hard drives
Connect game systems so that multiple people in multiple locations can play the same game interactively
Participate in auctions among selected groups of individuals
Collaborate on projects from anywhere using any connected device
Share compute services, such as processor cycles or storage systems, regardless of where the systems or the users are physically located.