Found a neat plugin for IDA, I think it will be useful for you guys too
Code: https://github.com/devttys0/ida/tree.../plugins/rizzo
Blog: A Code Signature Plugin for IDA - /dev/ttyS0
Identifies and re-names functions between two or more IDBs based on:
Formal signatures (i.e., exact function signatures)
References to unique string
References to unique constants
Fuzzy signatures (i.e., similar function signatures)
Call graphs (e.g., identification by association)
All credits to devttys0.