Do you plan to develop such an application or do you know about applications in the making from other coders?

One of applications using Reggae is Sputnik. I know also of some developers using Reggae in their projects. The bug just fixed was discovered and reported by one of them. Time between the report and the fix was less than 24 hours, it means I really do my best to cooperate with developers. About writing apps myself - I only have time for small apps like DigiFilter and Reggae examples.