So if we're thinking memory allocation is the issue here, I wonder if the V6 Supercharge would help out. I use it on my phone and it's incredible. I installed half of it on my tf700 earlier today, but I have to wait till I'm at a real computer before I apply the rest of the changes.
As a disclaimer, I've not had these random reboots, neither before nor after the OTA, though sometimes games will refuse to load with that whole nvidia issue. Haven't seen that for a little bit though either.
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