Samsung has released the open source portions of the Galaxy Tab OS and made them available for download. Of course, much of their software isn’t open source, so don’t expect to see everything in the code. It is very refreshing to see manufacturers quick to comply with the license agreements.
For the average user, this doesn’t mean a lot. Don’t assume you can download and install anything listed here on your Tab. But third party developers can and will have a field day with this, so look for assorted enhancements, kernels, and hacks soon.
The downloads can all be found at Samsung’s open source page.