Apple 's annual Worldwide Developers Conference kicks off Monday . Observers expect a new mobile operating system and refreshed graphics . A rumored smart ##phone and a possible smart TV device remain unknown for now . Apple 's keynote begins Monday at 1 PM . A watch feels slightly more likely than a TV , but not by much . ET in San Francisco .
Apple 's annual Worldwide Developers Conference kicks off Monday . Observers expect a new mobile operating system and refreshed graphics . A rumored smart ##phone and a possible smart TV device remain unknown for now . Apple 's keynote begins Monday at 1 PM . ET in San Francisco .