>>Hey Nadya,
>>
>>I can think of a good reason: If you have a sequential ID number that's "visible" and not the primary key, which may be managed internally and never viewed.
>
>Right, thanks. How can you ensure, that it's sequential? NextID approach doesn't guarantee sequentiality (?).

Heck, I don't know. I'm not familiar with the framework, just wanted to address the issue of why someone would want this.