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Swiping from right to left from this screen takes you to a traditional list of apps, similar to those found on iOS and Android. These are split into pages of 16 icons, and you can also create folders of apps by dropping them on top of each other.
Ahead of the launch of BlackBerry 10, BlackBerry realised that it would need big-name apps in the BlackBerry World app store on day one. Out of the box, the Z10 comes with apps such as Facebook, Twitter, LinkedIn, Foursquare, YouTube, Box, DropBox, Flixster and some news apps pre-installed. There's also the obligatory Angry Birds game (Star Wars edition, if it's a deal-breaker).
It also comes with a new version of BlackBerry Messenger (BBM) that now includes video calling, bringing the service in line with similar offerings such as Skype or Apple's FaceTime. BlackBerry 10 users can make BBM video calls with other BlackBerry 10 users and PlayBook owners, but with older BlackBerry handsets, they'll only be able to make voice calls.
Hub is one of the three main concepts underpinning BlackBerry 10 (along with Peak and Flow).
BlackBerry Hub is the integrated inbox with all your messages and communications including calls, text messages, work email, personal email, social networking updates or calendar notifications.
If that all sounds a bit much, you can filter the inbox by service, so that you're only looking at one of those categories, for example.
Peek refers to the way in which you can 'peek' at your Hub and notifications without leaving whatever you were already doing.
For example, in the picture above, swiping up from the centre-middle of the screen to the middle-right hand side of the screen activates Peek and shows notifications waiting in the Hub. The platform also uses a Peek-like dissolve animation as you swipe from the bottom to the top of the device to unlock it.
Flow, on the other hand, is BlackBerry's name for the way in which people navigate the BlackBerry 10 OS, flowing from task to task, peeking at things along the way.