Since schema.org is aiming to make it easier for people to find content while searching on bing, google, and yahoo, it seems like a pretty valuable resource for wordpress users. I, for one, would love to be able to mark up my recipes with the schema.org/recipe markup so that I can get more traffic to my blog. This would require wordpress to add "itemscope" and "itemprop" as allowed markup. It seems like these markups have no possibility for introducing harmful code, and it would be an easy addition. Please look into schema.org and consider this - it would be a boon to many wordpress users!
The blog I need help with is seletsucre.wordpress.com.