Guest mode still hasn't arrived in stock versions of iOS. This means that iPhone users can be at the mercy of anyone who borrows their device. Luckily for those who have jailbroken, there's a solution that makes it possible to easily enter guest mode before handing over the hardware. Much like iPrivacy did for iOS 5 and 6, the tweak GuestMode brings this functionality to iOS 7.

Once installed, there are several ways to configure guest mode and its activation. Options include a special passcode that will enable guest mode, or the addition of a Guest button directly on the passcode lock keypad. Another alternative will enter guest mode when swiping left or right on the lock screen. Of course, users can also assign guest mode to an Activator gesture.

This tweak might not seem very useful or worthwhile to a lot of folks, but having the iPhone's lock screen dim within seconds is annoying to some and incredibly annoying to others (me). This is probably due to the fact that when I am sitting at my computer I am usually either reading things or writing things, and I am always checking/using things on my phone as well, like the notification center and calculator, both of which can be accessed from the lock screen. The problem (and yes, it certainly falls into the category of first world problems) is that I will hit the home button on my phone so it lights up, but then I continue reading what's on my computer screen for a few more seconds, at which point I have to hit the home button again because the lock screen has dimmed. Thus begins the vicious cycle. But no longer - a new tweak called LockScreen Extender has solved the issue.

LockScreen Extender does exactly what it sounds like - it keeps the lock screen up for a period of time of your choosing. Once you have it installed, head to Settings -> LockScreen Extender. Inside, you can enable the tweak, then you can pick your "Dim

BlackBerry has begun rolling out BBM Voice and Channels, plus other new features, to iOS and Android devices today. BBM Voice simply allows users to make free voice calls to their contacts over a Wi-Fi or data connection.

Channels is a way for users to discuss a variety of topics, like sports and fashion, with other BBM customers without the need to share personal info or add them to their contacts. Users can easily set up their own personal Channels, moderate them and schedule chat times.

Getting a unique look on the iOS 7 home screen can require several tweaks and customizations. Besides installing WinterBoard themes or using colorization tweaks such as Fancy, a new option focuses specifically on folder icons. TinyGrid+ changes the grid of app icon thumbnails inside folder home screen icons.

Once installed, TinyGrid+ defaults to a look similar to the iOS 6 supported tweak 2x2 Folder Icons. Instead of the stock 3x3 thumbnail layout inside each folder icon, the grid within each folder is changed to 2x2 with more padding around the app thumbnails. This is just the beginning, as full customization is available under Settings -> TinyGrid+ on jailbroken devices.

Checking current weather conditions from the lock screen can be a one step process with Notification Center properly configured. Swiping down from the top of the display will show current conditions and describe the high and low temperatures in the Today view. What if there was a way to display this information directly in the lock screen?

Those with jailbroken devices can do just that with Forecast. The tweak has been updated for iOS 7 to completely integrate local conditions and forecast information from the stock Weather app onto the lock screen. Once installed, the unlock slider disappears and current conditions with high and low temperatures are displayed in the lower left corner of the lock screen.