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

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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

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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.

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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.