Yes it should be possible to embed the WebViewer into the UIWebView of iOS.
If you're interested in Android, we have a sample showing how to do this with the Android WebView control.
It can load the WebViewer in the Android's WebView control and load a document from local file system directly.
You can download it from the 1.5 Mobile Beta release:
The sample is under WebViewer/samples/android
We will be providing a similar sample of how to do this for iOS soon!