SEGA has today released the Mario & Sonic at the London 2012 Olympic Games Virtual Card Album on the European Nintendo 3DS eShop. The free app allows you to collect virtual cards between now and September 9th 2012 featuring characters from the Mario & Sonic universes. You start out with five cards and collect more by purchasing them with Play Coins or via SpotPass and StreetPass. Some cards are rarer than others, with some so rare you will have to visit designated Nintendo Zone locations and events to nab them. There are more than 70 cards to collect in all. Happy hunting!
Source: Official Nintendo Magazine UK