Remote play requires you to be signed into the same PSN account on both consoles

Shuhei Yoshida has given some new information about the remote play interaction between ps4 and ps vita.You will need to be signed into the same account on both systems when using remote play,however it doesn't matter if the ps 4 is the primary.Other info are that you can't use use dualshock 4,only games are supported not apps,sharing and livestreaming won't be functional at the same time  during remote play.