No. Centrino is a CPU+chipset+wireless *package* not a CPU. And as I
recall the Celeron M came after Centrino was out, to appeal to people
who thought that the "M" made their Celeron faster.
To put it very broadly, the Pentium M is P-III technology, with enhanced
cache, and some but not all of the P4 instructions added to the core.
Unfortunately that's only useful as a sense of where the parts came
from, I guess.
SBC/Prodigy Yorktown Heights NY data center