hProduct is currently in the exploration/discussion phase and could be a good compliment to hListing (which is more transaction-oriented) and hReview which is for reviews of products/items. The concept of hProduct came about because it would be good to extract the item information into a more discrete chunk of data for spidering and for specifying what it is you are selling or reviewing. It could allow for items to be tied to reviews more easily as well as for comparisons of like items to be made and, when combined with hListing, could be used to automate the QA of ecommerce sites (to make sure prices that should be charged for items are charged, etc.).
Currently the following pages have been created/started: