From what I know about TiVoNet, it'll come in really handy should TiVo ever go out of business. I've heard that you can use the TiVoNet card and a script to grab all your guide data from zap2it (which is where TiVo gets it's info), completely eliminating TiVo from the picture.

But, the guy that developed the script isn't releasing it because he doesn't want to screw TiVo out of business. At least I'm satisfied knowing that there are backup plans should something happen to TiVo.

I also like the idea of being able to remotely administer the TiVo.