I understand where your coming from as far as the "cat and mouse" game goes, that makes sense. However, if you hack into any modern device you run into that issue as everything is fully updateable now. Make a exploit, it gets patched, and so on and so forth, but what
Marionumber1 and others are doing is truly amazing and will make homebrew do able on the Wii U. People played cat and mouse on the original Wii and the'll do it on the U as well. Heck thats half the fun of it all, "beating the system."
The only way I see of "permanently" exploiting any system is to replace the OS entirely so no official updates could ever occur. Exploit the console, to flash it with a custom OS that bypasses all other security checks when the console fires on and basically hijacks it to gain control (like the original JTAG hack for 360 with XELL only). The main problem with something like that is one would lose the ability to play their games entirely (outside of emulators etc) and nobody wants that....
Games are expensive and people arent going to want to turn their $60 (US) games into frisbees just for the sake of homebrew.
I also disagree with your statements about using the browser as an entry point. Webkit is super buggy (plus Nintendo uses outdated versions to boot
), and its also open source ( a good chunk of it anyways
)
look at pcs for example....how do like 99.9% of viruses get into a person's computer? through a broswer exploit! Thats exactly what MN1 et al are doing to get unsigned code running (except in this case, its intentional and not with mal-intent.)