This would definitely be something we would be interested in using.
The only problem is timescale. I am working on a site which has to go live in the next few weeks just after new year. Can you recommend a quick hack to the existing codebase that will output the number of results only. We will then simply email users the relevant details as initially we aren’t expecting huge numbers and are phasing the launch of the site – at first its more to just drum up interest.
But we would then definitely want to upgrade to this more dynamic functionality once you are ready with your premium plugin, and I’d be more than happy to help you test it and showcase it once it’s up and running.