I just released a java Class on Github that makes an About and Share-Dialoges with the Android Framework. With easy to use HTML-Pages as Dialog Content (using custom Android Webview).
What it does:
The class AboutShareDialog is just a little part of my Android-Kitchen, that gives you an easy way to display beautiful about-, rating- or sharing- etc. dialoges build with html.
Head over to Github on instructions and more details.Go to Github