Mostly these ideas started up after reading the article about using an iPod to steal data from a company. On that same page is an AIM bot that can be used to remotely manage your system. I would really like to make a Jabber bot to do the same thing. The most immediate and obvious problem is the lack of encryption on the commands.
Really, the other question is "Why not use SSH?" Well, I do use SSH. The problem is that SSH doesn't work really well for notifications. I'd like to be informed of events without having to constantly look at the screen. Really, I want a shell with a setup where when a command finishes it messages me about it and does a notification popup. I think this could be done with a bash script and would help massively with asynchronous, multi-tasking activities.
As a Gentoo user, I think it would be awesome to initiate an update remotely and receive messages back when it succeeded or failed, especially considering how long that process can take sometimes.
The same thing would be useful for BitTorrent and other downloads when I'm away from my core computer.
