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What future for wireless computing?

The question of wireless computing's future is uncertain. Many believe that wireless computing has reached its full potential - we now have almost universal coverage thanks to a global satellite system creating a web across the world with very few 'blind spots'. Smart phones are feature-rich and future-proofed to a certain extent, and laptops are smaller, lighter and more processor powerful than ever. The only area that can really see any form of development to enhance wireless computing is in the field of battery-life. The most up to date laptops and Netbooks can achieve up to nine hours on one battery, but after that you are still forced to tether up to a power source to keep your laptop running - hardly a 'wireless' situation by any stretch of the imagination. So for wireless computing to move to a new level and give us true autonomy and control about where and when we use our computers, manufacturers have to address the knotty problem of that infuriating 'low battery' symbol. Perhaps then we'll have truly wireless computing on the go.