This is definitely a tough subject to capture. Keyboards are difficult to light properly, and DOF is tricky as well. It looks like you have the right idea with the angle of the shot, just deepen the DOF to bring more of the image into focus. A little more ambient light would make this image sharper, since it is very dark right now.
I think as far as meeting the challenge, this image needs a little bit more relevance. Keep in mind that the image should suggest or identify your specific product, and at the moment this could be any computer. It would also help if you cleaned the touch-mouse since it looks very dirty in the image, and not appealling as a product feature.
Your composition is well thought out, and you have a strong image here with a few tweaks, but this is more of a nice stock photo rather than a branded advertisement.
This photo finally motivated me to recalibrate my monitor because it seemed too dark. After recalibration, it still seems dark. So I might suggest lightening it up a bit. Focus is fine. So's DOF. I might have despeckled the dust but I'm a neat freak. So technically the photo's fine, but the subject matter doesn't sell me a Thinkpad. In fact, without the title, I wouldn't know it was a Thinkpad at all.