BurnOutPC.com has just posted their review on the XtracPads Hammer
A quote from the article:
>> XtracPads Hammer Review
The XtracPads Hammer is another new mouse pad from the XtracPads series. It's a harder surface and it offers the hexagonal pattern for increased sensitivity for better mouse tracking. It also offers a much bigger surface than any hard surface from Xtracpads before and it's much thinner as well. Making it almost a part of your desk.
>> XtracPads Hammer Review