its updated today with version 0.5, now you can remove the specific buttons, when you move mouse over it, there will be a small close button for it.
Obviously more and more people is thinking about enabling users to gain easier access to where they want to go in internet.
New Tab page is getting more and more useful now. Started with Opera's speed dial, and firefox's speed dial addon, weeks ago, Mozilla Lab presented the concept of various new tab features giving users quick links. This Auto dial addon is one of the result. Couple days ago, google's Chrome also implemented "top visited website thumbnail" in newtab page...
