Yes just Google anything and you see plenty of innerpages outranking their homepage, it's very common. Sometimes you also see it with new sites where the linkbuilding just started, for some reason an innerpage starts to outrank the homepage but when most links are pointed at the homepage then that's mostly just temporarily, like a bug in Google

There's millions of cases where an inner page will outrank the home page.

Just think of a product search and all the squillions of Amazon pages that appear in the rankings or Wikipedia entries.

Yes this happens at the initial stage of link building when Google ranks the pages on the basis of relevancy of a keyword in url, title and content of website

Sorry everyone, by outrank I meant "an inner page that has a higher PageRank than the home page"

Ah okay, yes possible, I have a website where the homepage is PR2 and an innerpage is PR4, actually quiet surprised by it cause I can't remember I did much backlinking to that page, maybe it's the result of some high PR blogcomments that I did a couple months ago.

I guess the inner-page would have to have more backlinks than the homepage? But usually the inner pages all link to the homepage so the PR is transferred.

I suppose it's possible to have an inner page have a higher PR. I've never seen it per se, but I am sure it happens.

I found few blogs that have PR3 and one of the inner page have PR5.

It's very easy to have an inner page with a higher PR than the homepage. It's just a matter of what backlinks you have going to the pages. Simple.

I see it happen with my sites all the time. It just depends which page you promote for the specified keyword.