> Just for information: I'm developing a requirement, issue and task
> management system in Squeak. Take a look at
> http://www.tideland.de/products/rms/ and
> http://wiki.tideland.de/wiki/TidelandRequestManagementSystem for
> information about the development process.

I like the slogan :)
The only constant is change. nice

Now have you look at Mantis and how do you compare in few words.