If you read the page localization in orhcardproject.net, it seems that most languages translations are up-to-date (2318 entries).
But event the en-US .po files seems to be missing some entries, as explained here : http://orchard.codeplex.com/discussions/284181#post811379
What are the recommendations regarding these missing entries ? On which reference is the "2318" number based ? Should we use this forum to report missing entries ?
Anyways, these 12 new entries can be added. It will help improve orchard localization since one of them is used to format all blog posts published dates.