3.80 settles the remote play issue for previous custom firmwares. before this they had to do a PSARdump and replace their flash0 files to enable it.

Remote play is pretty impressive, the only failure I got was trying to switch off the ps3 over the internet. Connection got timed out so ps3 left turned on

just make sure your psp is charged at least 75% and better yet while u run the update program keep the power plugged in. If you somehow lose power during the update process your psp will get bricked.