Maybe it can better be phrased as,
"what if online marketplaces published their data in an open format allowing the end client to display them however the user prefers"?
[edit]
Perhaps provided on a 9p.mydomain.tld subdomain?
Or would it just be something like nttp instead of http?
[/edit]
Neat project - thanks for mentioning. Definitely in line with what I'm imagining.
