Hi Peter
i couldn't agree more. Believe it or not (without getting to into it) i sent GS a proposal over a month ago to help them do exactly what your outlining. As usual no reply. (funny how both the marketing managers @ Autodesk & Bentley will talk to me, but GS can't even be bothered to reply).
You may notice our site at
Objectstop.com already has many of the features you have outlined; rating, easy uploading & downloading, tagging, good search, comment system, sharing etc etc etc, You can now even log in with your facebook, google or twitter account. (In one day, we could launch a better, prettier & more interactive forum than this one)
We would love to work with GS to help implement a decent central depositary/marketplace. That would ultimately benefit them the most (i'm not the one selling the software). The proposal didn't even require much on their behalf..
Maybe this thread will get them to reply to my email?
let's all hope so.