During bidding, once a valid bid has been formed, you show the OK button (if the bid confirmation option is set On). It would be useful (to me) if underneath that button you showed the bid that would be made (i.e., Pass, 2♠, X, etc.). This gives yet another chance for the bidder to detect a bid formation error. Every now and then I find that I did not make the bid I intended. I imagine this would be rather simple to implement, and there is plenty of empty area below the OK button. Perhaps an even more elegant solution would be to replace the contents of the "OK" button with text such as "Bid PASS", "Bid 2♠", "Bid X", etc.