Tonearm - 1:08 am on Aug 30, 2011 (gmt 0)
There are quite a few HTML elements and attributes that Google can use that are not classified as Microdata. Google have shown us in the past that it is fully capable of taking well structured semantic markup and using it to improve the user experience. This is a good case study for using structured lists e.g. <ul>, <ol> and <dl> and semantically structured <table>s.
Microdata is so much more unambiguous than lists and tables though. They've asked us to mark up our pages according to their schema.org spec, and then they don't utilize the markup? Am I missing something?