A table that gives A-Za-Z and 0-9 a nummerical value per char. So going to foo in table gives us bar.
Find our position in the table by looping through the table. But instead of A-9 or some thing. Do it sorted via commonality.
Increment our position in the table by an arbitrary rotation value. If we're at the end of the table, start from the beginning again.
Remember that !!!
also, gotta figure some thing out /w that PBI. Dunno a good way of doing it any better then now for the NIC list.