Interesting to find out that feeds with content that change dynamically (advertising in this case), are pushing the same items to the subscriber every time the feed is pulled and parsed.
Here's an example: http://feeds.guardian.co.uk/theguardian/football/rss Using my own instance ( https://pubsubhubbub2.appspot.com/ ) which is setup to pull non-push-enabled feeds, I got 9MB of data from this feed, today. What's interesting is that they (the guardian) put the ads in the item- >description tag, where the relevant content is also placed. How complex would be a solution for enhancing the app to filter out these duplicate items. Ionel
