Team 1306
did this last year.
(As far as I know, I was the first to use the term CrowdScout to describe this paradigm of collaborative data gathering. I'm amused at the parallels between my announcement last year and the one at the beginning of this thread.)
Last year we worked with several teams using a paper/electronic hybrid system - scouters filled out laminated scouting sheets with wet erase marker, and we scanned them into the computer and then were able to distribute the data to other teams. It was quite successful - it cut the work for each time by a significant margin as well as providing more robust and useful data than having a single team scout. We can use our existing knowledge and infrastructure to help the initiative avoid some of the mistakes we made last year.
1306 is well into developing everything we'll need to do this on a large-scale environment, across all regionals, with teams contributing data and getting access to the raw data. We should be able to integrate data from pretty much any electronic source via the internet (we'll have an API as well as writing some interaction code for specific solutions), and share the data with all participants.
The more people who collaborate, the better this will work.
Please PM me if you are interested. I will start putting up more information in the coming few days.