Early demand for the iPad 2 is about 40 percent higher than early interest in the iPad 1, a new ChangeWave study suggests. Of a group of 2,000 people polled between March 14th and the 23rd this year, 28 percent indicated they were interested in getting an iPad 2 in the near future. This merges 10 percent who deemed themselves "very likely" to get one, and 18 percent who said they were "somewhat likely."