ReNamer Portable 6.7 has been released by PortableApps.com. ReNamer is a very powerful and flexible file renaming tool with support for case changes, replacements, suffixes, prefixes, moving sequences, and more. It's packaged as a portable app so you download on the go and it's in PortableApps.com Format so it can easily integrate with the PortableApps.com Platform. It's released as freeware for personal use.
ReNamer is packaged for portable use with permission from the publisher.