The invisibleSHIELD from ZAGG is arguably the highest-quality screen and body protector on the market. What really sets the product apart from the competition is the ZAGG Lifetime Replacement Guarantee. Claims of free replacement can sometimes come with a list of fine print, so what's the real deal behind ZAGG's warranty program?

After purchasing an original back invisibleSHIELD for the iPhone 5 in October directly from ZAGG, the company proactively emailed three months later offering to "refresh" the product. With this email filed away, it wasn't until 8 months later that the invisibleSHIELD started to look shabby. Over 11 months it protected the iPhone 5 from several drops and pocket lint had infiltrated along one edge under the adhesive film.

Yahoo is celebrating Yahoo Mail's sweet 16 by giving the service a complete makeover. The updated mail client now allows users to view email threads as conversations, and offers the ability to collapse the left-hand toolbar for more room on smaller displays. Features like disposable email addresses, enhanced filters and automatic message forwarding are now available to everyone, instead of just Mail Plus customers.

Yahoo is also giving all users up to 1TB of free storage, and is introducing new themes with curated Flickr photos to "dress up your inbox." Users selected themes will apply across all devices such as your browser, smartphone or tablet.

OtterBox's Commuter Series Wallet Case is now available for the iPhone 5s and Samsung Galaxy S 4. The protective wallet case is equipped with a sliding drawer that can hold up to three cards and extra cash. The drawer features an audible click closure system so you'll always know that your personal items are safely secure.

The case also includes an interior slip cover to protect against bumps and falls, a sleek exterior shell that easily fits into your pocket, and a self-adhesive screen protector that guards against scratches and smudges.

Luke Wood, president and COO of Beats Electronics, LLC told TNW that Beats Music will launch “within the next few months.” The new music streaming service will be available on the Web and on iOS and Android devices.

Wood said Beats Music would be different than current music streaming apps such as Spotify because it is going to "focus really heavily on playlists."

“We’re talking about real depth of personalization and knowing who I am, who you are, what we’re listening to, what we like, what we’ve listened to before and then offering up music that is highly relevant to our taste profile," Wood explained.

The iPhone 5c price war rages on. Hours after Best Buy announced it would offer the new handset for only $50, RadioShack announced the same deal. Both electronics retailers will give customers a $50 gift card when they buy a $99 iPhone 5c. However not to be outdone, Walmart just announced it would begin selling the 16GB model for only $45 throughout the holiday season.

This is a great opportunity to make a profit by selling your old iPhone while still upgrading to Apple's latest handset. Both Gazelle and Nextworth are accepting trade-ins for all used iPhone models in working condition. You can get up to $115 in cash for a used iPhone 4, and up to $320 for a used iPhone 5. This is much better than Best Buy and RadioShack's $50 gift card deals. It also allows you to have enough money to take advantage of Walmart's $45 sale, and still have enough left over to pay off your carrier's early termination fees if you're still under contract. You can compare trade-in values for all the iPhone models here.