Review (1/5): worth $20?  No. $5? No. $3? Yes.
I saw this item recommended in the Washington Post holiday shopping guide and thought it was a great idea. I'm always wanting to brush my teeth at random times and this seemed like the perfect product for carrying in my purse and always being able to use. The biggest problem with this brush is it isn't long enough. When putting it in my mouth (I'm a petite female with a normal sized and depthed mouth) but you have to put part of the handle into your mouth to reach the back. How clean is this handle going to stay? It doesn't really hold enough toothpaste. The toothpaste actually comes out onto the toothbrush, but it doesn't cover enough of the brush unless you spend too long to get the coverage. It's a small and narrow brush head (with soft brissles) and the toothpaste gets all over your face, so a screw off cup should clip on and off from the bottom. Is it worth $20? No. Is it worth $5? ... I'm not sure, I'm thinking no. It's sure more stylish than alternatives, but I'm not sure it's any better. Also, it should have a place to store floss! Add a cup and floss, offer soft and hard heads, find a way to make gel toothpaste work better (they don't recommend using gel toothpaste!), have it hold more toothpaste, then you're golden.