Universal Androot allow you to root an unroot your android phones with the easiest way.this app is that it supports a wide range of Android devices such as acer liquid, x10 or N1.

X-plore is another must have app that you must install on your pocket computer, Its a file manager for your windows mobile pocketcomputer and winmo smartphones which lets you delete, move and copy files directly through your devices.

If you are experiencing reception issues with your iPhone 4, you are eligible to receive an iPhone 4 Bumper or other select third-party case through Apple at no charge. Download this free app for your iPhone 4 and apply for your free Bumper or case.

The Google Voice application for Blackberry and Android phones allows you to make outbound calls through your Google number, read transcriptions of your voicemails, make low priced international calls, and send free SMS.

UC Browser aka (UCWEB) is a Web and WAP browser for cell phones,which is really the best web browser for windows mobile and probably a replacement for the windows mobiles Default Web Browser. It supports video player, webwebsite navigation, Internet search, download, personal data management and more functions.

TiKL (Touch To Talk) is a simple VoIP push to talk communication app for android. You can instantly talk to your girlfriend and family with the touch of a button.easy to use and free to turns your android phone into the ultimate Push To Talk (PTT).

PocketGuitar is a fun app for iphone, ipod touch and ipad, It turns your iPhone into a guitar, rather a virtual guitar which you can actually play like a real guitar.

Another great blackberry weather application is BerryWeather. with this application on blackberry you can instant access to recent conditions plus detailed 7-day and 24-hour forecasts for over 72.000 locations worldwide.

PictureID2 for blackberry allows showing the caller’s ID picture in full screen and for blocked callers on your device

Note: Full screen picture will not work when the security or keyboard is locked.

GeoBeagle is a geocaching and letterboxing application for android phones such as motorola milestone or DROID, Once you register online at Geocaching.com, you can search online for caches hidden near you. You also have the option to pre-load them on to your phone then go out to find them, which makes it easier if you want to find multiple caches in a day.