Simson writes "Beth Rosenberg and I published a fun story today about our experiences with the new face recognition that's built into both iPhoto '09 and Google's new Picasa system. The skinny: iPhoto is fun, Google is creepy. The real difference, we think, is that iPhoto runs on your system and has you name people with your 'friendly' names. Picasa, on the other hand, runs on Google's servers and has you identify everybody with their email addresses. Of course, email addresses are unique and can be cross-correlated between different users. And then, even more disturbing, after you've tagged all your friends and family, Google tries to get you to tag all of the strangers in your photos. Ick."