Hmm... Why? Well, maybe I can help with that question. I am not exactly looking for a page to category solution, but something like that may help with my problem.
I think this situation is for people who are NOT USING WORDPRESS AS A BLOG. I love WordPress that I make it into an article directory (submitted posts becomes articles) and web template download gallery site (each posts contains info, thumbnail, download links for a template).
Alright, there's no problem with the non-blog solution that I have. They work great. But at the same time, I'd like to run a blog that shares progress and updates of the site. Because the categories are being used to manage non-blog content, I was wondering if I can create a top "blog" category and run my blog there.
Now, with that, comes the problem of navigation. How do you separate your non-blog content with your blog content? Hence the page to category comes to mind.
I am still looking at other solutions like multiple blog installation, category exclusion, etc... at this point, still testing and have yet to choose one.