Even then, it's fine as long as you're structuring your page sensibly. For example, on a blog index where each blog post is in a section, it's fine for each blog title to be a h1.

Matt Cutts talking about this: http://www.youtube.com/watch?feature=player_embedded&v=G...!

As I understand it, the whole "SEO mandates one h1 per site" is outdated. Search engines (read, Google) now follow HTML5 specs and, if you are doing your semantic tagging right, multiple h1 aren't a concern anymore.