Like I've mentioned before, this flaw in particular should only work on firmwares lower than 5.2.0. What I'm working on will work on any firmware version.
Good news is that there are two exploits being worked on now ?
If I understand this whole IOSU story right, then it's safe to assume that the real action lies in IOSU kernel access.
How many kernel functions does the IOSU have ? And how high (or low) would you rate the possibility that we MAYBE see more than 1 IOSU kernel exploit in the Wii U life cycle? (if we even see 1 of course )