I never buy the ‘backups’ excuse for modding your console. It’s about buying 20 pirated games from Dodgy Dave down the local market for £15, surely. Who backs up their games, seriously? Okay, it can be about playing imported games too, which isn’t as morally dubious.
Anyway, there are reports that Nintendo’s Wii has been well and truly hacked, with a modchip coming out imminently called the Wii D2C Modchip Actel. However, it only works with around 80% of region-protected games, and it requires you to do complicated soldering stuff to install.
I wouldn’t touch it with someone else’s bargepole. But then I’ve never been the soldering type.