It's been a while (well, about a month) since we last saw RIM's BlackBerry PlayBook in action, so it's nice to see the BlackBerry blog updated with some new footage.

The latest teaser video contains more than a few digs at RIM's tablet rivals by showing off its seamless Flash capabilities (in both video and games) as well as giving us a nice demonstration of it handling HTML5 video as well.

2011 looks all set to be the year where the big tablet battles are going to take place, with the iPad 2 and numerous Android and Windows machines all on the way.

Will RIM be able to compete with the PlayBook, or will it struggle because of a lack of apps? Only time will tell, but it's going to be fascinating finding out.