do it ever occur to you, there is the possibility that the main reason of the dropping it may be the following:
An average user see the "linux" version is $20 cheaper than the windows version and decided to go with more savings. Then he spend hours on the DELL support calls to figure out why his new webcam or other fancy hardware does not work in the old way and he can not get on to MSN messenger. Those support costs add up, plus the cost to train those supporting stuff to handle two different OS.
DELL want to cut cost in order to improve their financial report. Then they looked at the costs and say: let's concentrate on what most of the user use and buy.
Why it always has to be a conspiracy?