Nintendo has revealed that each Nintendo Points card, recently announced alongside the Nintendo DSi, for its digital distribution shop can be used for either the handheld or the Wii and cannot be split between both, according to Siliconera.
At a recent Japanese press conference, Nintendo renamed Wii Points to Nintendo Points because they could also be spent in the DSi store.
The points cards come in 1000, 3000 and 5000 points amounts, with the premium titles for DS costing 200, 500 or 800, however once used on one of the consoles they cannot be used on the other, meaning each card has to be dedicated to the DSi or Wii shop.
It is believed that the reason behind this is that customer shopping information for the Wii isn't stored online but rather on the console itself and without an account system in place there is no way that consumers could share unspent DSi points with their Wii.