After a brief discussion on IRC, we've decided that the proper spelling of the project name is "Ick", with a capital I. The set of software is spelled the same way: "Ick". An individual program is spelled with a lower case initial: "icktool".

For example, "Today, the Ick project is proud to release a new version of the Ick continuous integration and deployment system. It includes a rewritten implmentation of the 'icktool' command line program."