Vita will probably get hacked multiple times throughout its lifecycle. A hack like this incident doesn't mean the entire system has been compromised. Sony can still patch the hole(s) with little or no impact.
Now in the worst case, *if* Vita does get rooted, people will probably run Android and their games on it, plus whatever apps and emulators the homebrew developers come up with.
Man if we had Android on Vita that would've been sweet.
Thanks (again) **** for messing with the linux on PS3.