I wanted to bring up something that was mentioned in the other thread about Sylar and Peter.

It was suggested that no matter how many powers Sylar gained, Peter could merely stand near him and copy all of them. Now, I don't believe it's been ruled out, but so far there hasn't been anything to suggest this is the case, as far as I could tell.

When Sylar and Peter met at Mohinder's house, I would think that was plenty of time for Peter to absorb whatever abilities Sylar had, but we haven't seen him deal with super hearing, melting things, etc.

So I posit that Peter can merely absorb Sylar's original power, to intuit how things work. The only hole in that theory is that we haven't seen Peter do that either, but I think that's just due to it not being very necessary for him.