1. Apple iPad 2
The iPad remains the king of the category and, even with the invasion of an army of challengers, the iPad will retain a commanding market share lead when we get to the end of 2011. It still has too many factors in its favor: dead-simple usability, long battery life, a massive catalog of apps, and a respectable price. The last factor might be the most important. The iPad's rivals have had a very hard time beating the iPad's price tag while offering a comparable experience. The iPad 2 doesn't offer any revolutionary changes over the original iPad. It's thinner and lighter, has an upgraded processor and display, and adds front and rear cameras. It's a nice refinement, and with its big advantages in apps and entertainment, it easily has enough value to keep it at the top of this list -- even for business users, who want the apps for business tasks and the games and entertainment for plane rides (and to distract the kids once in a while). Read my full review.
If you'd prefer to view this list in text format, see the companion blog post.
Jason Hiner is Editor in Chief of TechRepublic and Long Form Editor of ZDNet. He writes about the people, products, and ideas changing how we live and work in the 21st century. He's co-author of the book, Follow the Geeks.