This is ND8 in 2008. You have a draft folder for mail which is great. Save a meeting or appointment as a draft and then try and recall it. The calendar Lists views do not sort by icon type (requires a customization to achieve).

 

Why is this basic capability missing?  Draft calendar entries do not appear in the mail Draft folder--nor should they. They do appear in All Documents, which does not help unless you can recall text in the draft message for searching. If one lightly uses their calendar, sure they can find it. Use it a lot--come back in a couple of days or after your vacation and the drafts get buried. Unless I am missing something, this is an easy win Lotus.