Yesterday, this appeared on my Mac desktop:

Picture 2-5

Here’s a little movie showing you what it does.

http://s3.media.squarespace.com/production/1075723/12829350/weblogs/weblog/images/mysteryball.mov.mov

Pretty weird. It’s like a UFO.

I don’t know where it came from or what it does.

Is it a virus? Spyware? Some undiscoverable bit of Mac UI?

If you know, please, people want to know!

Update: Intrepid reader Duncan Wilcox identified this as the “Floating Expose Blob”! Huh? I don’t know what I did to turn this thing on, and indeed, it is yet another undiscoverable bit of Mac UI. Now I like the Mac as much as the next guy, but what’s up with all these hidden features?

Technorati Tags: mac, UI