Wii and DS have generated great excitement due to their alternative game control interfaces, but the biggest opportunity could come from mobile phones.
In his GDC Mobile session, Using Touch, Sight and Gesture in Mobile Games, developer and academic Paul Coulton showed just a few of the innovative ways mobiles could be used to play new kinds of games.
RFID technology is known as an alternative to cash, and is used in shopping cards around the world. Mobile phones are increasingly being marketed which act as 'cash' in themselves. Users simply swipe their mobiles across RFID tags in order to make micro-payments. Coulton demonstrated how game developers could make use of this technology to create fun experiences in the real world. He showed how mobiles were being used in 'run and chase' games that merge real world gaming with on-screen gaming.