It is indeed exploit fever season, and the remedy — more N00bz! That’s right — the N00bz have combined forces with MaTiAz and FreePlay to help further expand on the recent “Sparta” (GripShift) exploit. The plan:

Our initial focus will be to make it easier to run standard homebrew via this exploit, by adapting eloader to it. This will be restricted purely to user-mode homebrew, since there is currently no public kernel-mode exploit that could be used here, and compatibility is likely to be patchy due to the security measures in the later firmwares which make determining all the syscalls almost impossible. Still, you can expect that at least some emulators and other popular pure user-mode homebrew will run.

So with that said, don’t get too excited for a downgrader solution yet. In the case of someone discovering a method to bust kernel mode wide open, then downgrading via Sparta could very well be possible.

- full article/source: noobz.eu