It's funny because Palm has actually been saying that corporate customers shouldn't be buying the Pre - that they should be getting one of the Treo models instead.
I don't think the Pre is really an enterprise device. It just isn't boring enough ;-). Really, it's that it has untested support for things like Exchange (other than Palm's internal testing). I'm sure businesses will support it just as they've started to support the iPhone, but even Palm is saying that enterprise customers should go with a different device (at least for now).
What makes you think it has a corporate angle? Specific features? The way it's being marketed? The real keyboard? I'm curious since it's not how I see the device, but when I see the device I think about what I'd do with it as a consumer. It would be really cool if Palm carved out a chunk of that market.
But it has an unmistakable 'corporate' angle that makes it unlikely to attract the crowd that the iPhone's been selling to.