Add WordPad to right click context menu "open with", see WikiWindoze.OpenNote.
Table support exists. I have no idea how i did this but it works and use it on a daily basis. See *rtf template attachment with table that you can copy/paste. Attach:WordpadWithTables.rtf
Wordpad also seems to have a hidden drawing pad feature when you click the windowskey + "h" (screenschot is in table template attachment).