You can stream video and audio files in the Syncplicity for iPhone app by tapping a file to play. Supported file types are:
Streaming enables watching a video or audio file without downloading it first. Streaming is done in the app and no additional applications are required. Streaming occurs when the app is in the foreground. When in the background streaming is paused.
When playing a file, tap the screen to show controls. You can play or pause the stream, scroll forward or backward.
The open-in and offline behaviors remain the same. The file is downloaded, if needed, and opened in an external app. See Contextual actions on files for iPhone.