Well, Apple likes to spring surprises on us - remember the original Bondi Blue iMac, and the iPod? Both were bolts from the blue that went on to be amazing successes. Er, don't mention the Cube...

It's certainly no surprise that Apple has just announced that its CEO Steve Jobs will "Kick Off" Apple’s Worldwide Developers Conference 2007, to be held in San Francisco from Monday, June 11.

Steve's keynote address (beginning at 10am; that's 6pm in the UK) will include details of the feature-complete version of Mac OS X 10.5 Leopard operating system, the successor to OS X 10.4 Tiger. Leopard is scheduled to ship in October, but had been delayed from its planned June launch while Apple concentrated on its iPhone software.

All attendees will receive a beta copy to take home for final testing. Expect to see the beta ready for download all ove rthe Internet immediately after Steve leaves the stage, and for Apple to try to sue its rogue distributors shortly after that.

Why do Mac developers feel it necessary to share their goodies with the world. Either they're just sharing kinds of people or they revel in the glory of having it first. Those trying to recoup the five-day conference costs of US$1,595 per attendee by selling it on eBay are unlikely to be attending next year's WWDC.