Following up on a submission by ScottMC concerning Gobe Productive 3.0.4, I find that indeed Gobe is offering a trial version for Windows. The trial version is free for 30 days use, with standard license to that effect, at which time you'll need to register the software to continue using it.

Gobe has also setup a new email, gobeinfo@gmail.com, as they were having trouble with their server recently. Please use this new one if you have questions or concerns regarding Gobe Productive.

Also check out the Download.com Mirror.