[Spyckie]

The git or mercurial teams should build a Google Wave robot that comes with the software. Not because I want them to, but because its a killer feature. :)

Also for syntax highlighting - take a look at codemirror. I've used it before and have been very satisfied with its performance and functionality.

I had a similar idea, but create the whole IDE on wave. Several advantages:

1) Programmable - you can add in functionality to the IDE much more easily by adding gadgets or even robots.

2) It gets rid of the concept of 'local copy' altogether, and makes your development project accessible from anywhere by anyone. It also means that you only have to set up one test environment rather than everyone's local environment.

3) You can have as many test servers or production servers as you want. One robot to manage multiple servers at once. This robot is essentially a remote command line connected to serveral test/production servers. This makes cheap servers (100$ wall servers anyone?) useful.