I thought, go download your own and see if it works out for you. I got mail from Nano users willing to test too, so hey.
The beta of Cocoia Timezones is now public. Be sure to read the readme and follow installer instructions. It allows you to choose a different directory to install to (recommended).
Features excluded in this BETA version:
Personalised timezone overlay,
New 1.0 themes,
Map smooth motion.
This is not feature complete. Please test this for me, and give me feedback about bugs, inconsistencies, and suggestions at this address.