I've recently added a mobile version of a web-app. Most web-page URL's like `mydomain.com/folder/page` now have another version `mydomain.com/mobile/folder/page`

In the web-page I've added:

```
  <link rel="alternate" media="only screen and (max-width: 640px)" href="/mobile/folder/page" />

```

And in the mobile version:

```
  <link rel="canonical" href="/folder/page"/>

```

This was done a couple of weeks ago, and still if I perform a `site:mydomain/mobile` I'm not seeing Google has indexed any of these mobile version pages. 

Will adding a mobile site-map resolve this issue?