Now that’s cool.  While I have not dove into the backend on posting a file and to tag it from a web page, the ability to do that, most excellent.

Full Jump Here: Project Freewheel

Excerpt From The Labs:  Want to view a design, but don’t want to install viewer software? Want to view a design on a Mac, a PDA, a Cell Phone, on Linux, or in Firefox? Would you like to embed a design in your own web page (HTML) and not require visitors to install anything? If so, then the Project Freewheel has the answer. It is both a web site where you can type in an URL for interactive design viewing, and a web service that allows you to embed an interactive design viewer in your own HTML pages.