For example, its Windows 8 Start key provides a quick and easy way to get back to your Start Screen, while the App Switching function key allows you to quickly switch among your open apps.
"The timing was right for this sort of product because people have become so used to their smartphones and using apps, that it was a natural extension they should have an app for the key as well, " Robertson says.
App selection is another key area that BlackBerry must address.
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With no new Resistance currently planned, according to Insomniac Games founder Ted Price, Killzone will be a key killer app to entice gamers to invest in the new PS4 hardware.
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The key features of app functionality are replicated through the car's iDrive controls.
The key to growth for app developers, as for most content providers, is to get to know their audience.
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By accessing the Second Screen App, users can engage with key elements from the film while watching it on Blu-ray.
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Designed to be intuitive and easy-to-use, a key feature of the app allows subscribers both to stream and download shows for offline viewing for when Wi-Fi or 3G connectivity is unavailable.
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Those apps include the MyLIU app, which gives students access to school services, a separate BlackBoard app for their classes, and a Citrix app for faculty and administrators accessing key university-hosted data.
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Oddly, it looks like the app selection is still missing some key titles that already exist on Windows Phone 7, but Samsung's made its own efforts, with preinstalled apps running the gamut from the useful (ChatON) to the less so (Samsung's own Music Hub).
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Both BlackBerry 10 and Windows Phone have burgeoning app marketplaces, but are missing many key apps.
Key Takeaway: In-App Purchases (IAP) has become the greatest revenue driver for Apps.
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The key is to write your app from the ground up.
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Other key features of the enhanced app include a redesigned TV Guide, with new genre tabs allowing Sky customers to discover their favourite content even more easily.
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They have built up the idea of an app-economy as one of the key driving forces, but these apps are coming from a very small pool of major development houses and in-house clients for social networks.
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Nonetheless, more carrier partnerships and better app support to drive Lumia sales will be key to its resurgent hopes.
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It would use public key cryptography to generate and store thousands of public and private key pairs, one for every app or gadget the user needs to unlock.
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Apple derives a single-digit proportion of group revenues directly from App Store downloads, but the store is a key symbol for the financial health of its iOS ecosystem.
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It works in essentially the same way -- DIAL lets you play streaming video on compatible TVs without having to launch the app first -- but there are a few key differences.
The key appears to have been making the Hailo app work first as a useful tool for cabbies, even before it was launched to consumers.
Pressing the WhatsApp key took a second or two for the app to open, and generally navigating with the buttons (no touchscreen here) will test your patience unless this is the most premium phone you've ever had -- something that might actually be the case for much of its market.
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Consumers listening to music on their Xperia U can also enjoy improved sound quality with the stylish new Smart Headset for Android smartphones, which features SmartKey - a dedicated application launch key that consumers press once to launch a favourite app.
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This last is the key differentiator between Famo.us and the other web app frameworks.
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There are no URLs for remote access sites to remember, the native app gets around any browser inconsistencies, and you can give a key to less technical users.
As Cloud Drive is already integrated with Kindle Fire HD, the new Cloud Drive Photos for Android app indicates that Amazon is clearly making a move to become a key player in this cloud storage niche.
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One of the 3, 452 enhancements Meizu implemented is the "Smart Bar, " where Meizu has somehow merged the app's bottom menu bar and the system's virtual soft key bar for the sake of screen space and intuitiveness.
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The value of this key is a dictionary with the appropriate values describing the navigation bar your app has at startup.
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There are a couple of related key features here: first we have the zoom bar in the album app -- you hold down your finger to prompt the bar, and then you can zoom in and out with your vertical scrolling action.
They and other platforms do have a key role to play in setting basic privacy rules for developers who use their app stores.
Rubin sees Google Play content additions as key to driving Android tablet adoption, not the encouragement of tablet-specific app development -- he'd prefer the one-size-fits-all model.
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