This is an ultra-liberal feed parser, suitable for reading RSS and Pie feeds as produced by weblogs, news sites, wikis, and many other types of sites.
Source:Dive Into Mark: Feed Parser
As I guessed and as Mark replied, his ultra-liberal feed parser now supports initial Pie (nee nEcho (nee Echo (nee Pie))) feeds.
But you know what else? He left in support for RSS. My news aggregator remains fully able to read all my feeds even after dropping in his new code. No breakage here. shortname=ultra_liberal_feed_parser