Since the iTunes Connect developer portal was shutdown for the holidays from Dec. 21 through Dec. 27. there were no new apps released to the App Store this week. Instead we will look at the new iOS jailbreak tweaks released to Cydia. The jailbreak tool evasi0n 7 was released on Dec. 22 for all devices running iOS 7.0 through 7.0.4. You can learn how to jailbreak your iPod touch, iPhone or iPad using Windows here or Mac OS X here.

iOS 6 Icons For iOS 7: Free (Requires Winterboard)

This is a simple theme that allows you to restore your iOS 7 Home screen icons to iOS 6 icons. The tweak is available in the BigBoss repo and requires Winterboard to install.

DockShift: Free (Requires iOS 7 or later)

Another free theme that gives you various dock background options. Does not work with the iPhone 4.

NCAllOnly: Free (Requires iOS 7 or later)

This theme removes the "Today" and "Missed" tabs from Notification Center on iOS 7.

Wireless telecommunications trade group CTIA - The Wireless Association has launched KnowMyApp.org, a website dedicated to measuring the data usage of mobile apps for both the iOS and Android operating systems. Their objective is to inform consumers and developers about various apps' data usage and efficiency before they are purchased and downloaded.

CTIA has partnered with Intertek Testing Services North America to provide this information, and currently offers data usage estimates on about 50 of the top paid and free apps in both the Apple and Google stores. Estimates are derived from information gathered by AT&T's Application Resource Optimizer (ARO) diagnostic

If you're always forgetting important events like birthdays and holidays CleverCards is the app for you. The free app easily syncs to your Facebook friends list so you'll never miss another birthday notification. It is also the perfect tool for lazy or busy people who don't want to go through the trouble of buying a card or using a third-party website to create an eCard. All you have to do is sync your friends list, then add those few annoying people like Grandma who don't have a Facebook account, and you're ready to go.

Once set up, the app will send your push notifications for every birthday listed on Facebook or that you manually added. You can then use the service to send a traditional printed card via snail mail for around $3, or send an eCard through Facebook, email or SMS for free.

Creating a card is easy and it doesn't take much time to complete and send. The best feature of the app is that it helps you avoid trips to the post office if you want to send a physical card. You can also pull images from your loved one's Facebook page, use pictures from your Photo app or take a new photo using your device's built-in camera to customize your gift.

The jailbreak tweak Zeppelin has been updated to support iOS 7. The tweak allows users to change their carrier logo into a different icon. Zeppelin comes pre-installed with over 15 custom made logos such as Batman, the Autobots or the Apple symbol. Themers can also upload their own icons to the Zeppelin library or download third-party packages from Cydia.

There are plenty of Zeppelin custom packages in Cydia to choose from, but most of them have not been updated for iOS 7. However, that will probably begin to change now that an iOS 7 jailbreak is available.

You can download Zeppelin for free from the ModMyi repo in Cydia, or update it by going to the Changes section. Zeppelin is a fun way to customize your jailbroken device. It is also very easy to use and highly recommended for iPhone users who are tired of staring at the boring AT&T, T-Mobile, Verizon or other carrier logos on their phone.

Apple is continuing the holiday spirit by kicking off its 12 Days of Gifts event in the U.S. for the first time. The 12 Days app is available for free to iOS 7 users in the App Store. The app allows users to download one free gift a day, beginning December 26 to January 6.

Apple kicked off Day 1 by offering a free download of Justin Timberlake's iTunes Festival EP. The EP includes live recordings of "SexyBack” and "Take Back the Night,” and two live videos, “True Blood” and “TKO.” The free download will only last 24 hours before it will be replaced by another gift.