15% off all CoPilot 8 GPS software and map upgrades for Android & Windows Mobile devices.
There's no TomTom available for Android yet, so I think this is one of the few offline GPS software packages out there.
Please Note: I would check the Android Market price first, as today Australia was 28.05 pounds, which seemed to be cheaper than 15% off the online store price of 39.99 pounds = 33.99 pounds.
Tom Tom = meh. The only reason its popular on iphone is because its bundleled with a GPS booster to overcome the iPhones rubbish GPS receiver.
Meanwhile, as tomtom were happily riding the iGravyTrain, several other competitors have upped their game to overtake tomtom software wise. I use sygic myself, and I've heard copilot is really good too. Also NDrive.