I liked Pete's and the deaf woman's interaction. Was the lady's husband a musician? She can obviously play the cello (viola?), but is it a result of her power, or something that she's been able to do, but didn't see the point, having lost her hearing? Could Peter always play the piano, even somewhat haltingly, as they did, or does the borrowed gift allow some capability with sound production as well as sound manipulation?
The deaf woman(name, anyone?) had to have amplified and modulated the sound from the cello in order to crack the wall. She could probably do it with any sound, with practice. Does anyone else think that the colors represent different pitches or frequencies? Or maybe are connected, as an earlier poster said, to the person's emotions?
Sylar's in a cool situation, now. If he goes psycho again, then he'll be in a veritable smorgasbord of genetic material to absorb! I don't really want him to go completely villainous, though. I hope he becomes some sort of antihero. Doing nasty things to nasty people for the good of all.
I think the problem with plotting, in this show, at least, is due to the characters being separated from each other, geographically, ideologically, experientially, and emotionally. I look at other, very successful shows, and compare them to Heroes, and the thing that the other shows have in common is the common element of that show.
Brothers and Sisters, the family dynamic and its satellites are want keeps the plot going in one direction, instead of going all over the place. Heroes has only the powers to tie everyone together within the plot.
The show Grey's Anatomy is about a bunch of doctors and such.
FlashForward, my favorite new show, has something that everyone has in common, except for, apparently, two people. (Dominic Monoghan rocks!)
Heroes really has nothing like this for its characters to wander around in. Its like switching DMs every week. The story can't advance, even if the players keep their same characters, because they keep switching refereeing styles, house-rules, standard-rules-preference, etc.
Plus, it seems like, season to season, large scale events within the Heroes world are not referenced again. All the empowered people were being rounded up, but what is the upshot of that? Just because Djenko is dead, does that mean that the effort is going to stop? Bizarre drowning deaths? Does no-one tie this to the empowered? Now that Sylar has his true shape--I guess Nathan's personality was the one "killed"--where has Senator Petrelli gone? To be fair, this one might be answered.
Just a few thoughts.