Dan,
Unfortunately, we have not had time to create a fully operational prototype of
the file upload proposal I posted. However, we have modeled the UI and gotten
some feedback from potential users. We have found that this model of
interaction provides the most versatility to users for uploading multiple files
and providing security, and to servers for providing backward compatibility and
potentially controlling when (and if) the files are uploaded.
Soon we hope either to recruit someone to create a prototype or to create it
ourselves. (Any volunteers?)
Ernesto
PS: We have created a simple, single file, one-step, file upload capable
browser (modified Mosaic), but we think the proposed model is better for the
reasons above.