My info is several years old,but for safety reasons I feel the need to post it up.
I was looking into a solution for tuning a neon several years back and asked about on some boards.
My questions were promptly deleted and I got a nice pm from the admin asking to please not ask about tuning dodges etc..
He said that mopar actually retains licensing or patents on their programming and every time they sniff one out are quick to sue the crap out of them.
Apparently they go after sites as well because he was pretty paranoid.
He said that it is done,but never talk about it on the boards.

Research at the time confirmed what he said I remember,as at the time there were only a couple tuners authorized to reprogram calibrations though there were "tuned" pcm's available from the parts dept as well.

Like I said,not sure if this is true or not but something to be aware of.