Hello,
I'm pleased to see your interest in Freescale Products

.
As you say you could not get samples, I suppose you asked your Freescale Sales Representative for some.
If you show him your plans to use with some projections, you might be able to get a more precise date...
It also depends a lot on what kind of packaging and how many you ask

The DZ with its CAN controller is quite targetted for Automotive applications I imagine.
Also, from its specifications, it looks like a good replacement part from the 908GZ60, for those who want higher bus speed and switch to the S08.
The only drawback being that there is no FSICE/MMDS/MMEVS emulator board for S08.
Alban.