Hi
The main problem:
How to get large quantity of PowerPC 970 and CPC 925 chipsets?
There is a yield problem at IBM fabs and the CPU / IC is NOT available for general public. All their production are bought by Apple (cornering strategy).
Second: bugs.
IBM and Motorola PowerPC are famous for buggy CPU and chipsets: PowerPC 620, Winbond/POP, Articia etc.
Will PowerPC 970 and CPC 925 contain similar bugs?