Apple's Worldwide Developer's Conference is just around the corner and Apple fans are pumped at what Steve Jobs has to show. The focus of the attention, of course, is the anticipated demonstration of the new OS X Leopard, but some insiders believe that the next-generation interface of the system just might steal the show.

The new look will be driven by a system called Core Animation which will make the visual experience more vibrant than ever. Imagine a 3D desktop where your windows flip in and out and on-screen objects are looking good with high detail.

"The revolution coming with Core Animation is akin to the one that came from the original Mac in 1984," says Delicious Library developer Will Shipley. He adds that a whole "new world" will open up once Core Animation hits.

And Shipley is serious. He says that the Disco CD-writing application will have an interface with smoke animations and it's quite possible for the user to actually play with the fumes. How about blowing air into the mic and seeing the on screen smoke get blown away? Sweet!

"We realized any app we released based on Tiger (the current version of OS X) was going to look really pathetic when Leopard came out," says Shipley. He then reminded users that they would have to buy the new product if they want to enjoy the new features.

We certainly hope Apple shows off this exciting new innovation that they've jacked up. Die-hard Mac addicts better get ready to bust out that wallet because the Leopard intends to pounce hard.