Most RSS feeds or other WebService APIs available like Yahoo, CNN has HTML content.
Hence it becomes very difficult even to write simple applications using those services.
Ideal way is to have HTML support for Text. To start with we may provide an option to remove all HTML tags and render plain text.
http://shopping.yahooapis.com/ShoppingService/v3/productSearch?appid=YahooDemo&query=sony&show_numratings=1
http://rss.cnn.com/rss/edition.rss
http://news.google.com/news?um=1&ie=UTF-8&tab=wn&q=google+news&nolr=1&output=rss