developing tool for building Android/Iphone app

I have .net c# background(don't mind to learn new language to get the things right). Right now i want to make some small applications for Iphone/Android phones.Basically, i will show some graphs with data retrieved through my webservice.

Can anyone tell me which developing tool should i use to create those small apps quickly?

I don't have any experience with Flash.And i just know that Flash builder 4.5 can convert Flash applications to Iphone/Android. However, i don't feel like that it is a native way to build Iphone/Android app

But if 开发者_高级运维you advise that, i might go that way.

thank you

Xamarin has products that allows you to use C# (and your existing skills) for both iOS (iPhone / iPad) and Android devices : MonoTouch and Mono for Android.

disclaimer: I work for Xamarin

You might want to use frameworks that help build apps for multiple platforms with the need to know native programming languages. PhoneGap is one of these popular frameworks.

You can use C# to create a WCF service. There are a few different libraries to develop Android applications. If you want to work with C#, you can check out Mono for Android.

http://docs.xamarin.com/android

From my knowledge, however, Java is the preferred language to develop Android application. Eclipse has a great plugin which integrates with the Android SDK / Emulator.