This is already possible with the new version of Profiler. The only thing is if you wanted to share profiles you would have to do this yourself (maybe start a profile-sharing thread in General), I can't see the online database being for anything but DVDs abd Blu-Ray. People have already started using Profiler to record other collections - even wine!
The easiest way would be to create a custom collection list and store your games there and custom media types takes care of console/format. Some people have even created their own translation files to change the names of fields to something more fitting to their collection.