Mobile wrapper for web applications
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I'm looking for mobile wrapper like PhoneGap to wrap web application into native app for IOS and Android. Web application will be bit complex so it must be done in technology I know (ASP.NET HTML5*). Other important note is that i don't own Mac so i can't use PhoneGap as far as i know.

Native app must have upgrade and notification push abilities along with basic native functionality like Google Maps integration, Facebook and other basic stuff.

Do you know any platform that can fit these requirements ?

thanks