There is been more than a little jazz about the Sharpie Liquid Pencil. Being geekoid, I have been looking forward to it as well. I was able to grab a few today at Office Depot, and they are a disappointment. The idea of the liquid pencil is that it is graphite suspended in some kind of liquid substrate, which goes onto the paper via a fine rollerball. The upside is that there is no pencil lead to sharpen or mechanical lead to break. And according to Sharpie, the written lines are erasable for about 3 days, after which they become permanent. Sounds good. The reality is that the pencil produces a line of poor quality. It skips, and looks like a line from a pen which is not receiving a sufficient supply of ink. It just does not look good. It is erasable, but this does not distinguish it from wood or mechanical pencils. And according to Engadget, it never gets permanent as Sharpie advertises. So, I don't see the point. At $4.99 for two "pencils", is it worth the purchase so my 9 and 13 year old sons can play with them? Probably. Would I buy one for myself, or recommend them to others? No chance. They produce a line of poor quality, and apparently never become permanent. If a pencil line is what you are after, a wood or mechanical pencil is superior IMO. Bottom line: its a concept which has potential, but this version has fallen woefully short. As a novelty item, it might be worth playing with for a while. But I can't see anyone using these things in the long run.