The drive is backwards-compatible and will work with all USB 2.0 enabled computers and notebooks, as well as forthcoming USB 3.0 models.

ENGADGET: Freecom gets slim with Mobile Drive Mg portable hard drive, supports USB 3.0 and FireWire 800

Goode soon put Worcester back in front before slotting another monumental effort from five metres inside his own half, when the Warriors produced a fierce scrummage drive which sent the Quins pack backwards for almost 15 metres.

BBC: Worcester Warriors 15-17 Harlequins

In the latter scenarios, the regenerative drive generates electric power as the motor rotates backwards.

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Today's Sony PS3 unveiling has opened up a world of questions regarding how Microsoft expects to maintain a competitive edge against a system that will supposedly have more than double the raw processing power, a next-gen media drive (Blu-ray, in this case), two-generation backwards compatibility, and even support for 1080p hi-def.

ENGADGET: & Joystiq's live coverage of Microsoft's Xbox 360 E3 event

"We as human beings are not genetically programmed to go backwards, so reversing in general is really quite difficult when you're learning to drive, " says Kevin Delaney, head of road safety at the Institute of Advanced Motorists.

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