If you have followed the guide on how to root your new One S then you will have access to thousands of rooted apps and developer Roms.
If not here is a link on how to just follow the guide:
http://www.htconexforum.net/htc-One S-4g-how-to/how-to-root-your-phone/Here are a few to start you off:
SuperUser, Wireless Tether, ROM Manager, Titanium Backup, Erase Market History, Shoot Me, Adfree, Set CPU, Font Changer, Call Recorder, Copy Paste It.
Please feel free to copy and paste original message and add on your own.
