Hmmm... if Peter permanantly copies someone's powers, he does not realize it quite yet.

Therefore, he is currently able to heal himself, can fly, read minds and can go back and forth through time, but just doesn't know it yet.

I imagine the other's powers will expand in time.. the cop might become resistant to mind control and brain washing because as we all know, telepaths develop their ability further. He might actually be able to control the minds of others, too, or at least plant suggestions in their minds.

Hiro is making great progress in learning to use his powers.

Nikki might learn a bit of control, too, in regards to when her other self emerges.

DL might discover that he can phase people and objects through walls, etc, with him.

Wasn't the painter NOT high when he made the painting of Hiro?

So, in time, they might all discover other aspects of their powers.

"I offer you a Vulcan prayer, Mr Suder. May your

death bring you the peace you never found in

life." - Tuvok.