Apple Losing Its Edge In The Tablet Market?

How can Apple be losing its edge in the tablet market? I thought they patented the edges of all tablets? While Apple is still the world's No. 1 tablet maker, Samsung is No. 2 and growing at a faster rate. Looking specifically at year-over-year growth from first quarter numbers, Apple grew by 65 percent -- not bad. But, Samsung grew by 282 percent, Asus grew by 350 percent, and Amazon grew by 157 percent. The question is: Is this part and parcel of a bigger problem? Is the rest of the market getting smarter and better -- and also less expensive?