Apple last week signaled its future direction with its latest round of product launches. It hopes to engage the family around the living-room TV with gaming and entertainment content; disrupt the TV broadcasting industry with third-party development of apps; capture business users and eat into laptop markets with its revamped iPad tablets; and win over phone users from traditional carriers. However, the company faces challenges in developing an “ecosystem around total privacy” and low-cost suppliers around the world, according to experts at Wharton and elsewhere. During its announcement, the firm highlighted its new Apple TV, a set-top box with apps to access Netflix, Hulu and iTunes and the ability to subscribe directly to HBO and Showtime, bypassing cable or satellite service providers. It includes nascent gaming features, and with enhanced search, its upgraded voice-activated Siri feature allows users to pull up favorite movies or instruct it to forward or rewind.…