Among a slew of announcements at last week's WWDC, two stood out. Credit: Apple,

What were the most important products revealed at Apple Inc.'s (NASDAQ:AAPL) Worldwide Developers Conference last week? Guest host Alison Southwick puts this question to Fool analysts Nathan Alderman and Tim Beyers in this week's episode of 1-Up On Wall Street, The Motley Fool's web show in which we talk about the big-money names behind your favorite movies, toys, video games, comics, and more.

Nathan singles out HealthKit, which is deeply embedded in iOS 8 and provides the mechanisms for integrating health data in a new app dubbed "Health." The idea is to make it easy to give Apple users a complete picture of their physical well-being, no matter which devices or apps they use. More than 20 partners are already backing HealthKit, which Nathan says could also give rise to new Apple-branded wearables such as an iWatch.

Tim says Apple's new programming language, Swift, tops the list of Apple announcements because developers can't take advantage of HealthKit, HomeKit, or any other Apple breakthroughs without first courting developers. Swift attempts to make coding easier and faster by modernizing the 20-year-old Objective-C language. The resulting tools give developers reason to get excited about Apple again, and could lead to a new crop of advanced iOS and Mac apps.

Now it's your turn to weigh in using the comments box below. What news from WWDC got you most excited as an Apple investor? Click the video to watch as Alison puts Nathan and Tim on the spot, and then be sure to follow us on Twitter for more segments and regular geek news updates!

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Alison Southwick has no position in any stocks mentioned. Nathan Alderman owns shares of Apple. Tim Beyers owns shares of Apple and Google (A and C class). The Motley Fool recommends Apple and Google (A and C shares). The Motley Fool owns shares of Apple and Google (A and C shares). Try any of our Foolish newsletter services free for 30 days. We Fools may not all hold the same opinions, but we all believe that considering a diverse range of insights makes us better investors. The Motley Fool has a disclosure policy.