What’s interesting is that Wolf says more than half of the iPad sales would be drawn from the iPod Touch. Many have said that the iPad looks like a larger version of Apple’s iPod Touch.

Wolf’s predictions certainly aren’t at the high end of what analysts are predicting for iPad sales. IDC analyst Richard Shim said last week that he estimates the company will sell 4 million to 5 million iPads this year, doubling Wolf’s prediction.
Wolf said he is waiting to see what the iPad’s catalyst will be to help Apple boost sales. As examples, he pointed to the iTunes Store for the iPod and the App Store for the iPhone.

It could be that Apple will rely on the infrastructure it built for both of those devices, and iBooks to propel sales of the iPad in the next two years.