Some more BlackBerry 10 video goodness to start off your Friday. While giving an OS demo on the BlackBerry 10 Dev Alpha B, Claudio Roselli, Regional Senior Product Manager at RIM Spain showed off some of the core apps of the BlackBerry 10 OS. Among them are a few that we've seen before as well as a brief look at the video and music apps. We get a chance to see them both in action in addition to more of the BlackBerry Hub, the browser, the clock app and that awesome lock screen. Seeing demos like this get me more and more excited for BlackBerry 10 -- only a few more weeks and we'll be able to take it all in first-hand.