Google has released a slideshow application for iOS and Android. This app, Slides, comes months after Docs and Sheets were made available on the two mobile platforms. With Slides, users can create presentations from scratch or import content that is not from Google Docs. After installing the app you will have access to all of your slideshow presentations, and you will have the ability to work with them.
There appear to be some crashing issues with Slides right now, but Google should fix those shortly.