47. The computer system of claim 41 , wherein the indication of the accuracy of the practice gesture currently being performed includes one or more items selected from the group consisting of: an animated hand, one or more motion trails, an iconographic representation, a textual description of the gesture currently being performed, a textual description of a command corresponding to the gesture currently being performed, a positive feedback indicator, and a negative feedback indicator.
47. The computer system of claim 41 , wherein the indication of the accuracy of the practice gesture currently being performed includes one or more items selected from the group consisting of: an animated hand, one or more motion trails, an iconographic representation, a textual description of the gesture currently being performed, a textual description of a command corresponding to the gesture currently being performed, a positive feedback indicator, and a negative feedback indicator. 49. The computer system of claim 47 wherein the computer system comprises at least one of a handheld computer, a personal digital assistant, a media player, and a mobile telephone.