After months of development I finally got around to packaging up my app for deployment in user mode on the Surface.  I did run into a couple of minor hurdles at first which I will share with you, and tell you how I got around them.  First of all, check out the documentation on the Microsoft Surface community site and the SDK.  In your root app directory you will see a file like myapp.xml which is generated by visual studio for you.

The following code example shows the default XML file.

<?xml version="1.0" encoding="utf-8" ?>
<ss:ApplicationInfo
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xmlns:ss="http://schemas.microsoft.com/Surface/2007/ApplicationMetadata">
  <Application>
    <Title>SurfaceApplication</Title>
    <Description>SurfaceApplication</Description>
    <ExecutableFile>SurfaceApplication.exe</ExecutableFile>
    <Arguments></Arguments>
    <IconImageFile>Resources\icon.png</IconImageFile>
    <Preview>
      <PreviewImageFile>Resources\iconPreview.png</PreviewImageFile>
    </Preview>
  </Application>
</ss:ApplicationInfo>

Notice in the <ExecutableFile> element, how it has “SurfaceApplication.exe” as the value?
It should really look like this:

%ProgramFiles%\Microsoft Surface\SurfaceApplication\SurfaceApplication.exe

The urls in your other elements like the previewIcon should follow the same format. Hopefully, this helps some people out.