Compare products from other sites

I'm trying to figure out a way to pull prices offered by other merchants for the same products I sell. Something that will list the prices for a product from Google Shopping, TheFind, etc.

For example, if my store sells an iPhone5 for $750 with free shipping (I don't, just using this as an example), it would be nice to list the total price that other sites sell the iPhone5 for. The following link currently lists the price range for this phone as $767.94-$853.94: https://www.google.com/shopping/product ... 3805361128 This price list, of course could change at any time, so it would be very labor intensive to manually update this price list for every product.

Is there a way to pull a feed from Google Shopping so that a list of prices can be displayed on each product's page, perhaps in another tab (Description, Related Products, Review, Compare Prices)?

i would love to get this mod also i been looking for it as well