If you haven't already done so, there is still time to trade-in your older iPhone model and upgrade to an iPhone 5s... Especially if you're holding out for the elusive gold edition. Some trade-in services such as NextWorth and Gazelle are still offering around $200 for used iPhone 4S models in working condition. "Working condition" normally means the phone powers on, does not have a cracked display and has zero water damage.

You can even trade in your phone and have money left over for a new model if you're still locked into a carrier contract. For example, NextWorth is offering up to $323 for a used 64GB iPhone 5. That's enough money to pay off AT&T's early termination fee on a one year contract with around $120 left over to put towards a new iPhone.

Camera360 has teamed up with Sony to support the Cyber-shot QX10 and QX100. The Sony QX10 and QX100 are Wi-Fi lens cameras that improve your smarphone's picture taking abilities by mounting directly to your device. The Camera360 app will become the first photography software to be customized for the new smartphone lens cameras.

"Through working with Sony DSC-QX100 and DSC-QX10 cameras, we're making it easier for mobile photographers to capture high quality pictures with the most popular and professional filters. We're making continuous improvements to provide a better photography experience for global smartphone users," said Gary Gu, Marketing Director of Camera360.

UPDATE: BlackBerry has announced that both the iOS and Android version of BBM have been delayed. From the BlackBerry Blog:

Our teams continue to work around the clock to bring BBM to Android and iPhone, but only when it’s ready and we know it will live up to your expectations of BBM. We are pausing the global roll-out of BBM for Android and iPhone.

After a few false starts, leaks and getting stuck in the Apple review process for over two weeks, BlackBerry's messaging service has finally started rolling out to iOS devices. BBM has popped up in the New Zealand App Store with more countries to follow. The Android version was supposed to land in the Google Play Store first, but has yet to make an appearance.

BlackBerry highlighted some of the messenger's features on its blog earlier this week. Some of the iOS and Android highlights include BBM Chat, the ability to share files on your phone and multi-person chats. BBM users can also post personal messages, add a profile picture and keep all their contacts updated on what they're doing through the Updates feature.

Zagg is now accepting orders for its invisibleSHIELD screen protector for the iPhone 5s and iPhone 5c. The Original invisibleSHIELD offers standard screen coverage for $14.99. The Smudge Proof version is designed with the same materials as the original, but it "reduces the appearance of smudges and fingerprints," and "improves screen visibility under bright conditions," according to Zagg. The Smudge Proof invisibleSHIELD is $19.99

Zagg's "most popular" product is the HD screen protector which Zagg claims offers a "glass-like surface" for $14.99. The Extreme protection model features a unique shock and break resistant layer and is " virtually indestructible". The Extreme sceen protector is $29.99.

iOS 7 runs on the iPhone 4 and later, but this doesn't mean that the iPhone 4 supports all of the new features found on Apple's new OS. This happens a lot with Apple's older devices when a new software is released. The iPhone 4's hardware just can't support all the fun things iOS 7 brings to Apple's newer devices. The new OS even looks different on the iPhone 4 because Apple has disabled some of its graphical effects to take the pressure off its older A4 chip.

For example, the iPhone 4 does not feature live wallpapers and the parallax effect found on the home and lock screens. It also misses out on the wireless peer-to-peer file sharing feature AirDrop, panorama and filters in the Camera app (however you can apply them later in the Photo app), and of course the iPhone 4 is still without Siri and all its new tricks.