I rooted the galaxy tab using nvflash when it first came out in the US. With nvflash we can flash rooted roms and do full backups. I am trying the same process with the TP but I have ran into some issues. First issue was the drivers would not install. I added the TP device id then I installed the drivers. I tried nvflash --sync command but get a unkown device message. We need a updated nvflash that supports tegra 3. If anyone has an updated version of nvflash please pm me.
Edit: I checked online and dev package for tegra platform from nvidia but could not find a updated version of nvflash that supports TP. Are device does have APX & nflash support(Vol+ then power button then hold both 15 secs then release).