I wonder if anyone is ever going to create a completely W3C compliant ecommerce app. I have been continuaously disappointed with OSCommerce, and Zen Cart isnt much better really. I think there is such a gap in the market here. Maybe when paypal releases its Website Payments Pro to Australian Dollars, or when Google finally gets its google wallet out we can make ecommerce site development more simple, and get some great apps out there.
I would love to work on a completely W3C, xhtml, css compliant ecommerce app that just plugs into wither paypal or google wallet (eventually) to handle credit card payments. Interested? email me, my name is tim and my domain is timmadden.com.au so you should be able to figure out my email address out of that.