Demand for tablets like the iPad has reached the point where it's more popular than just about all other categories of device, Forrester discovered discovered in a research note put out late Thursday. As of June, 14 percent of shoppers online were planning to get an iPad or a similar tablet within a year where just eight percent expected to get a netbook. The demand was higher than for desktop computers (four percent), e-readers like the Kindle (11 percent) and even notebooks (13 percent).