Tired of running out of battery power for your myriad mobile devices? Want to keep fit but just can't justify the time out of the office? Well here's the perfect technology answer for you. Yes, coming soon, possibly, to a Carphone Warehouse or an outpatients unit near you - a knee brace that can generate enough power to charge your mobile or pacemaker.

Yes, Sneak has discovered that some clever North American scientists have managed to create a device which can harvest the kinetic energy expelled by the knee. Don't go holding your collective breaths though - it could be some time before your mobile workers get to benefit from the fruits of their IT labours.