So then, what good would this exploit do then? If homebrew is impossible, why are people bothering at all do help use this exploit? Seems pretty trivial IMHO.
No one ever said homebrew would be impossible. What mario is referring to is for running custom firmware (CFW). CFW is not going to be required to run standard homebrew apps. Once we are able to access the existing SDK (more like libraries) which is embedded in NAND (using an exploit) and utilizing them we will be able to run homebrew. For super fancy things (perhaps software based backup loaders) is where we might actually need some custom firmware. I'm not 100% how the security (in regards to preventing backup loading) works on the Wii U, but seeing as this console has been a "hard nut to crack," I'm willing to bet we'll need custom firmware for backup loading (via software). All modern consoles have (even the original wii, CIOSes anyone?) have required some level of CFW for software based backup loading.
But for ordinary homebrew, utilizing the SDK stored on NAND is key. No CFW required. From there maybe somebody will develop some region free loaders like on the original wii . This prehistoric method of region locking is killing me.....why nintendo why!!!!???? lol but i digress....
Brainstorming Session:
Since getting some sort of "homebrew channel" installed on Wii U mode, doesn't seem very feasible at this point in time, I think it might be a good idea, that once an exploit is released for launching homebrew, that someone develops some sort of homebrew channel-esque menu that runs entirely off an sd card. The exploit could be used to launch said menu and then the menu would provide the user a list of homebrew apps found on the sd card and/or usb devices. I think this would be a good work around, until we can find a way to actually install such a menu.