As far as letting users provide their email so that module authors can communicate with them about module updates, research for future features, etc, I think that is a great idea.
I was suggesting we add it during this year’s summer of code but if you want to work on it beforehand, even better.
I think that if we’re going to add a subscribe feature it should have its own panel in the UI (i.e. having a submit button next to the Add On’s general info would confuse me). I would put it under the download button.
Simplistically we can just let people enter their email, with some descriptive text about how we will use it. (And we would have to verify it’s their email address and we are not enabling spam.)
Instead or in addition, if they are logged in with an OpenMRS ID we can give a single click to subscribe to updates for this add on.
We should probably provide a way to send the actual messages via the application rather than giving people csvs of email addresses.
Thoughts? Anyone want to draw some mock ups?