Yes, Save as MHT from the File menu will get you a version of HTML.
We have tools to allow you to post content back to a database from a downlevel view of the InfoPath form. In essence, you are then using InfoPath as a web page designer. We will be selling these tools for a small fee on our website in the next few weeks. Stay tuned!
Patrick Halstead [InfoPath MVP]
InfoPathDev
Patrick Halstead
Project Manager at Qdabra