If you're shooting for the mobile market, writing a web app that works in the 5 most popular mobile browsers is a lot easier than rewriting your native app for each platform you want to target.
Isn't there huge fragmentation in Android webkit? Plus focusing on iOS and Android covers most 'mobile' cases. Other platforms hold a harder justification.
Perhaps the route forward is a simple web app to cover everyone, then focus on the top platforms for native.
Perhaps the route forward is a simple web app to cover everyone, then focus on the top platforms for native.