Here are some software ideas that I think somebody (not necessarily me) should implement:

• A BSD-flavored IP over DNS tunneling client and server. See: Attacking Distributed Systems: The DNS Case Study. Perhaps something similar already exists? I haven’t looked.

• A Cocoa media player for Rhapsody. This would probably have to embed some WebKit objects to be able to manipulate the Safari plugin.

• A Cocoa front-end for Vim. The current Mac interface is very slow, and doesn’t support keyboard traversal of its dialog boxes. It would be nice to have something a little bit more modern.

MacVim is exactly what I was looking for. See also CocoaVim.

• A Cocoa front-end for Synergy. Ideally this would be a preference pane that becomes active when the system is booted multi-user, and it would be possible to run it in both client and server modes. Obviously it would need some kind of graphical UI for arranging screens relative to each other and setting options on them.

Someone has done a really good job with this as SynergyKM.

• A VST ⇔ Audio Unit bridge, allowing you to use VST plugins in applications that are only Audio Unit hosts, such as Logic Pro.

I’ve released a project for this called VSTAU. There’s also a commercial product available from FXpander.