I would say reaching 90%+ of apps means it can be used for serious apps :) If you have the budget to build an incredibly detailed native app on all platforms,

I would say reaching 90%+ of apps means it can be used for serious apps :) If you have the budget to build an incredibly detailed native app on all platforms, then Ionic really isn't for you. We are okay with that, you aren't the target user. Also, PhoneGap/Cordova is really just a thin layer between a web view and the native platform. You can really send and receive any kind of data between it, which means you can do anything native that you want. The thing people get hung up on is that Cordova ships a designed API that does not give you as much control, but it's only a plugin away (something we want to build more of).