The HTML5 export ability in CS5 is rather limited now (can't do ActionScript nor many other features), and we think there will always be a mismatch in capabilities.

We developed Hype from the ground up to support the latest HTML5 features as well as some decent fallbacks and warnings for older browsers. It can be customized with JavaScript and interact with the rest of your page.

Hype was also built to be very easy to use; if you know how to use PowerPoint you can use Hype. It's "heritage" comes from how people make interactive content today, instead of the traditional animation space.