Very perceptive of you Brian. I remember moaning to my mates that Pete had a crap power compared to the rest (how little I knew).
The Hiro you see in that episode you do see again, much much later in the series. Totally cool episode that one. Your journey is only beginning, it gets much MUCH better later in the series. Like Ada says, I can't say anymore - keep watching!
oh p.s. Mohinder was not the target of Hiro's warning. Pete was. For reason's which become evident later
