It makes the exploit just accessible to a broader range of people, and I think it's a good thing someone writes this driver/module for Linux-based gadgets. Not everyone has a Teensy board lying around, but if you happen to have a N900/N8x0/770 lying around, why not use it for this? It lowers the entry barrier (for users who already have a NIT-ish device). In the case of the N900, you might even be able to charge it while you are playing games.

The thing that worries me is that there's no real information about compilers, SDK, etc.. around that would help getting developers started writing homebrew (for the PS3). Right now, the only use for this *is* the Backup Manager - until some other software becomes available.