i'm not sure if there's anything that makes me madder than xml-rpc (maybe atom's wsse auth, but i'll get to that). the idea is sound, but it's very badly designed. very badly. to return a single hash of data, you end up with a tree six elements deep. why have <value><string>bob</string></value> when you could just do <value type="string">bob</value> ? It's almost as if the designer didn't want to use a full xml parser, so avoided anything that couldn't be parsed with a regexp. yuck.