It's no secret that the iPad is the most popular tablet out there right now. But the key words there are "right now". The iPad had a year's head start, and created the current tablet market that so many others are now rushing to join. A survey by the Nielsen company this spring shows that the iPad has an 82% market share of tablets in the U.S. 43% of iPad owners have the 3G version, and 39% have the Wi-Fi only tablet. The closest competitor was the Samsung Galaxy Tab, though it's hard to call 4% "close". No doubt the iPad is a great tablet. We on SlashGear have called it the best on the market. But will that still be true next year? And what impact are tablets having on the way we use our other devices?