Moreover, its a false dichotomy between vendor lock-in and a consistent user experience. What Google has shown with the HTC Dream and Nexus One handsets is that you can have something without a centralized approver deciding what apps are blessed for publication and which aren't, and yet still have a consistent user experience. Though individual carriers do in fact restrict apps to the Android Market, this is not inherent to the platform like with iPhone OS-- customers can and should complain about carriers that lock down Android handsets.
Also inexplicable is Apple's love of DRM. Time and time again, DRM has shown itself to be the bane of consumers. It doesn't make the iPad any better in any technical sense, and only serves to introduce anti-features to the platform.
In short, my opposition to the iPad is not due to a difference in opinion about design decisions so much as it is an unwillingness to participate in a platform where both developers and users are completely subservient to Apple's whims and where I don't truly own my own device.