interesting leopard feature

I dunno how they're doing this... but leopard knows how you got a binary somehow. At least I can't think of any other way to do this:



So that was accomplished by:

1. download skype .dmg from skype.com with firefox to downloads dir (seen in very back window).
   
2. mount .dmg (seen in left window)
   
3. drag skype to applications (via alias in dmg)
   
4. open applications folder (again, via alias; seen in right window
   
5. run skype
   
6. get freaky message
   

So thinking Skype did something funny, I pulled down my own software's disk image... knowing full well I didn't do anything special: