I'll download and play with it the moment I don't have to register to do so...
Zip: http://www.recessframework.org/preview/content/files/recess-...
Tarball: http://www.recessframework.org/preview/content/files/recess-...
Registering at this stage is required as solid documentation/tutorials are still on their way (now the top priority) so having a simple, single place to go for support/discussion is important to help bridge the gap between now and then. Download away but reconsider registering if you run into issues or questions.
Even exceedingly tech-savvy users will avoid using things that require registration. By all means - encourage registration, but if you require it when it isn't strictly necessary, you'll run off most of your potential users.