This is for our external site, and alas, is not .net...
It looks as if I will be redesigning from scratch instead of serving our current content, but optimized on the fly via detection and stylesheets.
Probably better to start from scratch, anyway.
And thank you for the links! I had not seen the developers guides specific to the browser version, much more info that I can use.
Incidentally, one item I did find on the RIM knowledge base was a sort of flowchart showing the path from BB user to internet, to the actual content.
Along that path, (behind the firewall on the server side) was the "BlackBerry MDS" (Mobile Data System) and within that system, it shows a bunch of bundled features like Connection service, Provisioning service, Data Optimization service, etc. Apparently this is all through a BlackBerry enterprise server.
I wonder if the "Data Optimization service" in that bundle could be the workaround I'm looking for.. Has anyone ever heard of or used that service?