Remote Clip lets you sync clipboards of networked computers.
Remote Clip enables you to transfer text and files among multiple computers over a network - such as desktop computers, laptops, and personal digital assistants (PDAs) - by synchronizing their clipboards. Synchronization ensures that the clipboards of the computers are always identical. With this technique, data can be moved between different computers using the familiar copy-and-paste model: select an item on one computer, copy it to the clipboard (using the standard Copy command available in most applications), then turn to the other computer and paste the item (using the standard Paste command).
Note: I put together an ipk for the Z. The dl for other platforms from the homepage. It lets me copy on the desktop and paste into the Z but not the other way around. It also requires the Z to establish connections. the desktop never would connect to the Z for me. I don't know much about java or I would fix the screen size problem and the network communication problems, it's window is to wide for the Z and you have to move it back and forth a lot.