LIquid Pencil?

http://g4tv.com/attackoftheshow/attackthis/71775/The-Ultimate-Back-to-School-Necessities.html

Ok, theres this new thing out called a, "Liquid Pencil" short story is that it's an erasable, smudge less Ink. I haven't seen it yet, but I'm curious in it's art applications, the pens are said to be cheep, but is it available in canada, I think my best bet is staples.

It's said to come in a variety of tones, but I just wont a good inking tool. I have no idea were to pick up the bottled ink but I can wait for that, plus I'm broke at the moment.

You can see more online about this, it's pretty easy to find info on it.