Don't experiment on the App Store
The recent adventures of PCalc widget leads me to subscribe to the following statement. The bottom line is that if I were an iOS developer, I would be leery of investing significant resources into a Today View widget. @TidBITS source Unless you have time to explore (and see how it goes) DO NOT EXPERIMENT on the App Store. Do you have in mind a new feature? Toss it out as quickly as you can, submit it and see how it goes.