Wii to overtake Xbox 360 installed-base by year end

The Wii has built a huge sales lead over the Xbox 360 and PS3 but it still trails the Xbox 360 in terms of its installed-base – the number of units actually in use. However, the way Wiis are disappearing from store shelves, it will not be long before the Wii installed-base flies past the 360. According to market research firm, iSuppli, the Wii will have the largest installed-base among the current generation consoles by the end of 2008.

iSuppli expects Wii’s installed-base by year-end to be 30.2 million units, up from 18 million in 2007. On the other hand, the installed-base of the Xbox 360 is expected to be…