Recent ChangeWave survey data shows considerable demand for the forthcoming iPad and, interestingly, a wave of "buyer's remorse" among some of those with other tablets and eReaders. According to the survey of "3,171 consumers, conducted in the aftermath of that Apple announcement (Feb 1-10)," 57% of eReader owners are either uncertain about their purchase or would have bought an iPad.
Here are the data:


Here's ChangeWave's "bottom line":
While the iPad launch is likely to strengthen overall e-Reader demand, the survey suggests Amazon and its competitors could well find themselves relegated to playing catch-up within just a few quarters if they don't preemptively move quickly to upgrade their own e-Readers.