It appears that ZD Net has had a 45mins with the Surface Pro at CES. I can't add a link as the iPad won't let me paste it but highlights of story are;
* Pen has magnetic connector but not as strong as the keyboard one
* it runs "surprisingly cool" due to peripheral cooling
* MircoSD has been moved from under the kick stand to the side
They state that the Surface Pro is "(it's) shaping up to be the Tablet PC done right, with a mix of hardware and software that should make it attractive to many users".
* Pen has magnetic connector but not as strong as the keyboard one
* it runs "surprisingly cool" due to peripheral cooling
* MircoSD has been moved from under the kick stand to the side
They state that the Surface Pro is "(it's) shaping up to be the Tablet PC done right, with a mix of hardware and software that should make it attractive to many users".