Mary Hodder at Napsterization has some well-taken points about the privacy implications of Dodgeball, which proclaims, "Tell us where you are, and we'll broadcast your location to all your friends and let you know if any friends-of-friends are within 10 blocks." Hodder says:

But do I really want Dick who is a friend of my friend Jane's dog Spot to know that I'm standing at the corner of 24th and 3rd right now, blogging this? I mean, I guess that anyone reading this on their web phone could run over, but then I'm choosing to blog this info, and of course, my friends can call me because I've given them my number, and the can see when I'm on IM. But I choose that too. I let it happen because they are my friends and I know them. But everyone on Friendster three degrees out? That was the last time I checked in the hundreds of thousands.

I don't want hundreds of thousands of people to know where I am. That reminds me of something someone said at the CCCC-IP Caucus a few weeks ago--that students in the age bracket of late teens-early twenties no longer think they have the right to privacy. *Cringe*