Application is quickly started using a hard button! The easy usage which anyone understands. The application to 48 kinds can be direct started by pushing a hard button twice. . While this icon is shaking, it is in the condition that the group was chosen. While shaking, the member in a group is chosen. If it leaves for a while, the shake of an icon will stop. In this condition, since a group's selection is null and void, it chooses a group once again. Favorite application can be assigned if the tap of the division of an icon name is carried out.

In Treo650 of some versions, after talking over the telephone with Phone application, there is a bug by which the time setting to auto-power-off will be set as 30 seconds. In order to recover this bug, KeyLunch added the function in which the time to auto-power-off can be set up. Moreover, since the key which hits the conventional memo pad was a power supply key and combination, Tro650 was not useful to KeyLunch starting. In this version, KeyLunch can be started with the button for e-mail starting.