Mobile apps were originally intended for productivity: email, calendar and contact databases, but public demand caused rapid expansion into other areas, such as mobile games, factory automation, GPS and location-based services, banking, order-tracking, and ticket purchases. There are huge amount of apps on the internet, what apps will you install? Here are 5 apps I think everyone should have.

1. Money Transfer: This refers to people sending money via SMS messages. Like mobile payments, this service has more appeal in developing markets for now.

2. Location-Based Services: There are still far too many services to choose from when it comes to location-based social networking, fragmenting the market. Your friends on Loopt are often different than those on Brightkite and that list is different than those on Foursquare. But LBS extends to more than social networks - it includes any application that taps into your phone's GPS capabilities to offer up location-based services of any kind, whether that's local business reviews or directions to the nearest Starbucks. Gartner says this will be one of the most disruptive technologies in the future, with a user base growing from 96 million in 2009 to 526 million in 2012.

3. Mobile Health Monitoring: Another technology whose impact will be felt more heavily in developing markets, mobile health monitoring is still at an early stage of maturity and implementation says Gartner. Project rollouts have been limited to pilot projects for now, but in the coming years the industry will begin to monetize these efforts by offering mobile healthcare monitoring products, services, and solutions to various care delivery organizations.

4.Mobile Browsing: Saying that mobile browsing technologies will be heavily used in the future sounds a little bit like stating the obvious. That's also good news for web developers who can build mobile web applications to cater to this bunch as opposed to focusing all their efforts into building apps for the numerous mobile platforms like the iPhone, Android, RIM, and others.

5.Mobile Music: Sure, you have the iPhone, but what about your other options? What about mobile music services - especially those for non-iPhone devices? We're still waiting on Spotify in the U.S., for example, and their competition too. Gartner says that we're beginning to see new innovative models in this area that will include both device (think "Comes with Music") and service bundles.