As an app developer, I think this is a great idea - anything that helps us to get noticed by Etsians has got to be a good thing as we find it very difficult to get our name out there! As Graeme mentions however the right "checks and balances" need to be in place to ensure that it is neutral and fair. Is this intended to be a "for the community" effort or will you potentially making money through promoted listings etc?
Etsy were talking about fixing the app store layout early this year as they recognised that there was a lot of low quality apps in there cluttering the lists, but haven't seen any signs of improvement so far. :( If anyone is monitoring this thread from Etsy, can we please get an update on the situation regarding this?