It looks pretty decent...it's flat and simple and I personally like that.

However it lacks two features:

1. Possibility to change site icon by yourself and to customize.
2. Resize option.

Before I ask this I just want to say that I'm not developer nor I have any knowledge in coding/scripting/programing whatsoever...

So...how hard would it be:
To make speed dial extension that would capture and show/display one variable from the specific site ?
For example: Earnings on some site...It would just have to display how much money you have on your account.