What do you mean?
I do know Sony is pushing it's services to phones, tablets and PC's so you could pay with your PSN's wallet currency through your phone, if that is what you mean.
I know they are releasing a new PlayStation App close to the PS4 launch. With that you will have access to the PS Store so you can purchase your PS+ subscription from there.
Originally posted by another user
The companion app turns iPhone, iPad or Android-based smartphones and tablets into a second screen for your PS4, letting players purchase titles from PlayStation Store remotely, chat with PSN friends, watch their friends’ gameplay videos or "give them game tips".