Render HTML Content in Unity UI Mobile Platforms

Part of the unity game working on require to show some html content by URL and loading html string, and display as a web page(working urls, etc...) content has to blend with unity (NGUI) UI elements, such as scrolling the screen will move both html content and NGUI elements.

I have tried out HtmlTexturePlugin, but it does not support html content and only a url. and this would need to support iOS and Android. I am not necessarily looking for a common solutions and could work with platform dependent solutions as well. currently I am using UniWebView but it show as a separate layer on top unity view. current solution trying out is to make that html view similar to unity so end user doesn't know about the transition from unity to html, but it is not an ideal solution as we have to make two separate UIs'.

also another thing exploring is to save the UniWebView to a texture and display, and to make the links working when web texture interaction.

we are using Unity 4.6.4 with NGUI as the UI plugin.

much appreciated if anyone has a much better approach to this situation.