In just a few years, smartphones have taken over our lives – half of the UK population now owns one. We’re hooked on touchscreens, apps and smartphone smugness but there are still plenty of surprises in store.

Here’s a taster of the innovations you might carry in your pocket in years to come.

Bendy screens

Touchscreens made phones more intuitive than ever, and the next generation of screens promises to revolutionize our habits yet again. Several companies are working on the first phones with flexible screens, expected to hit the shops by late 2012.
The innovation inside these bendy screens is OLEDs (Organic Light Emitting Diodes) - thin films of organic molecules that produce light when you run an electric current through them. Often less than a millimeter thick and offering a bright, crisp image with low power consumption, it’s not just flexibility that makes OLEDs a popular choice.

OLEDs could pave the way for bigger screens that fold away neatly,  and new ways of controlling your phone by bending or twisting its screen.

Self-powered phones

It’s a simple trade off:  the more processing power is packed into your smartphone, the faster its battery charge vanishes. A phone that powers itself sounds like a dream come true – and it might just happen.

Piezoelectric devices can convert mechanical movement into electric current. They rely on piezoelectric materials, which generate a tiny electric current when flexed or pressed. Microphones, amongst other things, use this effect to turn sound into an electrical signal.

The amount of power produced by piezoelectricity is usually miniscule, but at the Nano scale, even the tiniest of movements can be harnessed. The latest research into nanomaterial promises ultra efficient systems that could power your phone using the vibrations of your voice or the tapping of your fingertips on a touchscreen. 

Instead of waiting for handsets to come with higher-capacity batteries, I'd like to go one further and envision a smartphone that runs on an alternative power source altogether. That'll eliminate the need to plug it in for charging, and I won't have to worry about saving my device's energy if I'm miles away from an outlet.
I know that solar-powered battery packs already exist, but I want a polished, modern phone with charging panels built in. Manufacturers have attempted this somewhat: back in 2009, Samsung unveiled its E1107, the first solar-powered GSM feature phone that would require 1 hour of solar charging per 10 minutes of talking. Later that year, LG released its solar-charging GD510 Pop, and CNET reviewed its Blue Earth handset, which also had solar panels on the rear.
Personally I think in the future we will have things never thought of before like instead of 3g, 4g LTE we will have 5g and crazy speeds of internet to download movies steam music and everything we do in our daily lives.
http://www.cnet.com/news/smartphone-future-tech-where-can-we-possibly-go-from-here/
http://www.physics.org/article-questions.asp?id=83