While the iPhone is breaking sales records, BlackBerry — which used to rule the roost when it came to smartphones — is in deep trouble. Via Zach Epstein of Boy Genius Reports:

BlackBerry has been hemorrhaging users and its worldwide count fell to 72 million from 76 million during the May quarter. According to one industry watcher, the bleeding won’t stop until BlackBerry’s subscriber base hits zero.

When it comes to technology, entire industries can be turned upside down seemingly overnight.