Apple WWDC: Siri Speaker, iPad Pro, artificial intelligence and more rumors on our radar

Apple's Worldwide Developer Conference starts Monday in San Jose. Here are a few of the areas we'll be watching closely. Siri Speaker: Will Apple challenge Amazon's Echo? The possibility of a "Siri Speaker" is one of the biggest rumors coming into the event. The general consensus is that Apple needs to expand its virtual assistant into this growing area, possibly with the help of its Beats brand and technology.