With the rate that tablet technology is advancing, it shouldn't be too long before they become the forefront of any portable EFB, with regulator backing. Its easy to understand why CASA are so hesitant in allowing them to replace the paper requirement, even for private operations. That been said, I reckon their use in the commercial environment will eventually be the same a private, where you can do away with the paper requirement if you have a backup, eg the mini or another tablet device. I've had mine crash on me in flight and the reboot times are simply amazing. Worst i've ever come across was an iPad overheating in the pittlands out past Ayres Rock. But even that cooled down remarkably quick when i sat it in front of the air vent.
I can't wait for ADSB/TCAS functionality to be available on them, with the relevant hardware of course, Even a full blow MFD setup