Pure Javascript application with ASP.NET
<p>In your opinion, what's the best way to create the server side to a pure Javascript application with ASP.NET?</p>

<p>WCF rendering JSON? IHttpHandler?</p>

<p><strong>Update</strong></p>

<p>Like GMail, that runs in the browser (with a lot of Javascript) and submit and receive data with Ajax, for example.</p>
