Having no keyboard on the tablet:
I miss being able to just triple click words to look up in dictionary. (Tried tapping like crazy.)
Also miss something to make link instant details popup instead of opening the link in a new pane/zone, which I could probably do with Alt+click if I had a keyboard.
Keep up the good work! Accordance on the Windows tablet is for me now more useful than the iPad version (as I can have more resources open at the same time).