We recently reviewed the Powermat iPhone 4 Wireless charging system here on Tech on the Go, and we liked it a lot. We’re very happy to annouce that Powermat are letting us give away the review unit to you – our readers.

The Powermat iPhone4 Wireless Charging system consists of an iPhone4 case with built in wireless receiver, and a charging mat. Simply place the iPhone, in its case, on the charging mat and it starts charging instantly – no need to connect the cable! The Powermat iPhone 4 charging system is worth £49.99.

The enter the competition is very simple – simply follow us on Twitter and retweet (RT) the competition tweet – in one weeks time, we will pick a winner at random from our new followers.

To enter: Follow @techonthego and retweet (RT) the details

Note: This system will only work with an iPhone4 not the earlier 3G/3GS. This competition is only available to residents of the U.K. Closing date is 18.00 April 27th 2011.