Tupelo is available as a download, although we recommend checking it out of SVN instead.
You can download Tupelo here.
What's in the download
Tupelo is organized into modules. The downloadable package contains a single source directory holding all the code for all the modules, and a single library directory containing all the libraries Tupelo depends on. This is a fairly large (~100MB) package. If your application only uses some of Tupelo's features, consider checking out the relevant modules from SVN and building them yourself.