Speaking of close to chest, here is a service called RoundCube that provides a LAMP web mail client that you can install on your own system:

http://roundcube.net/

I would like to see *more* services like this, and I would prefer to see them in something a little less rickety and hard to configure like LAMP. I would rather see a single Java/C binary, with a single GUI to configure all of the various servers. In this way they would be far more plug-and-play without the nuances of configuring and connecting various servers.

Personally, I would love an web SSH client (already exists), an IDE, and a SIP client.