I don't think emulating Keynote is the right play. Any online presentation app should be designed to exploit the inherent advantages that web applications have, i.e. collaboration, information retrieval, etc..

I don't think the goal is to replace Keynote or Powerpoint but rather provide software the lets people easily develop bring presentations for a web audience.

As a former iWork engineer, I think some of the stuff Keynote has can't be replicated effectively in a web application.

Schoudha's right -- the killer edge for Zenter is making a connected presentation app that leverages the web. Remember the annoying task of importing presentation images? Why not make that easier since you're already in a browser? Things like that.

Oh I didn't mean that it shouldn't try and exploit the advantages of web apps, I just meant that it should make presentations look better, by default, than those awful PowerPoint presentations we always see.