Lpc2000

> Has anyone else experimented with overclocking the LPC21xx series?
> Do you think overclocking this chip significantly reduces its lifetime?

Unless the part gets too hot, overclocking is unlikely to kill
it. You are more likely to start getting setup and hold times
between the core and Flash, and/or peripheral buses. However,
if you start to get close to 'the edge', what works on your 
current hardware setup may not work on an identical board.

Code profiling and a little inline assembler might be a safer
bet :)

But, that's not to say you shouldn't try to break things and
come up with a few stats on the subject. Go for it!

Dave