The video above from SamMobile treats us to a preview of Android 5.0 Lollipop running on the Samsung Galaxy Note 4. The version of Touchwiz that is running with Lollipop is unfinished, but it's a good start. What's particularly intriguing is that Samsung is sticking to the Material Design concept put forth by Google's latest OS, although not all of the apps have been restyled yet. Despite this video, there is still much work to be done before it launches on the Galaxy Note 4, and Sammy hasn't shared any intel on a timeframe for that release. Rumors suggest that we might see it by the end of the year, although sometime early in January is more likely.