No. The Droid X and all others (Droid, myTouch, Droid Eris, etc.) are all based on the Android platform. Android is based off of Linux. Apple (iPhone, pod, etc) is also based on Linux, but neither...
they are the same as any computer:
cpu
ram
i/o
disk
video
power
The main difference is the redundancy and power.
2+ cpu's
more ram
more io, multiple ethernet ports, esata, external scsci,...