Bits: Live Blog from Apple's WWDC 2013

Monica M. Davey/European Pressphoto Agency Tim Cook of Apple at the developers conference.

And Mr. Cook is back on stage. He’s talking about iCloud, the company’s cloud-based service. There are 300 million iCloud accounts, he says.

ICloud has sent 800 billion iMessages and 7.4 trillion push notifications, Mr. Cook says.

Roger Rosner, an Apple software manager, is on stage demonstrating the new iWork for iCloud, which will let you create documents in a Web browser on a Mac or PC.

Pages in iWork for iCloud work directly within a Web browser and look exactly like apps on a desktop. You can change fonts, insert images and insert graphics, all using drag and drop from the desktop.

Mr. Rosner is explaining that Pages for iCloud can edit Microsoft Word documents and Numbers for iCloud can edit Microsoft Excel files. “Again, this is all happening in a Web browser,” he says.

He is now showing iWork for iCloud running on a Windows computer. “There you go, I am editing a Keynote document on Windows 8,” Mr. Rosner says.

iWork for iCloud is available today for developers, but will be available for everyone else by the end of the year.

(Correction: An earlier version of this live update misspelled the surname of an Apple software manager. He is Roger Rosner, not Rosener.)