Slug (http://www.3e.org/slug/) is designed to work specifically with Movable Type via the Blogger API, UserLand's proposed MetaWeblogAPI (a more generalized and extensible API based on Blogger's), and some API calls specific to Movable Type. Other than the addition of Movable Type's categories, Slug is rather rudimentary and reminiscent of BlogApp for Mac OS X and blogBuddy for Windows. Figure 2-7 shows Slug.
Slug comes as a self-installing Windows .msi application with included source code. It does require the installation of the Microsoft .NET Framework, a separate 19-megabyte download.