Definitely a consumption device, but I think that's the problem. It needs more enterprise application. I believe, you should be able to walk into work, plug in your iPad (like a laptop/dock) and be able to do your whole job, on an iPad. Access full fledged Salesforce for an example, access network drives, Oracle services, and be able to quickly multitask via multi screen support.
I realize I just described a laptop and the iPad can do some of these things already, but in it's current state, it's not enough. Something is missing. With more of an enterprise focus, I believe IT and education customers are going to gobble it up in volumes. But, in order to get there, I think iOS for iPad needs a fundamental change in terms of how it can be managed by IT folks, and how easily it can integrate with customers' existing enterprise programs and operations.
The iPad doesn't need more consumers, it needs enterprise and education customers. iOS for iPad needs to change to attract these types of customers.
There already is a lot of enterprise activity with the iPad. IBM has built a business unit around the iPad using their enterprise software. Other companies as well for targeted applications. It will never be a general purpose computer, like a desktop or laptop.