Apple FaceTime is a feature that allows us to place video calls. Marvelous in inception and #fail in implementation, it is best explained as,

FaceTime works by connecting an  iPhone 4, 4th Generation  iPod touch or computer with  Mac OS X to another similar device; the previous generations of  iPhone and  iPod Touch are not currently supported, however on the  iPhone 3G and  iPhone 3GS, users can enter facetime:// urls in  Safari to trigger what appears to be a FaceTime call, although it does not truly ever successfully initiate.

To put a stake into the coffin, a recent  security hole had fanboys troubled about FaceTime as it allowed anyone to change the password once the user is logged into FaceTime. Picture this. You login, leave your account open and following Murphy’s Laws, your 5-year-old son makes a few super-clicks and bang! Your account has lost its password beyond repair. Not just that, the password is changed across all of the Apple ID and you are stuck in a bad situation.

Apple has released a temporary fix. How? By disabling the button that takes you to an account page.

(Source)