I urge you MVP's to read this thread on the Dell community forums. (Specifically around pages 6-8)
http://en.community.dell.com/support-forums/laptop/f/3518/t/19616659?pi239031352=8#20760800
Also read this AMA on Reddit to one of the Precision Touch Pad developers.
http://www.reddit.com/r/windows/comments/1hky29/precision_touchpads_the_future_of_touchpads_on/
Also this follow up comment by the same MS PTP developer.
"Dell's correct that there's nothing they can do for this - it's entirely on our end. While I'm not working on PTPs this release, I've forwarded your feedback to the current owners."
So as an end user it still appears that this is a MS problem and not a Dell problem as you so hastily put the blame on.