Deciding which mobile OS is right for you can be difficult. If you can't decide, then you need to watch this review of the four most popular mobile OS platforms for smartphones and tablets: Android, iOS, Blackberry and Windows Mobile 7.

Fun Fact: Did you know that that today's many of today's smartphones that fit in your pocket pack as much as computing power as it took to land a man on the moon in 1969. So, whatever mobile OS you choose, you're going to be packing a lot of power.