I also confirmed that like Miguel, the patch psmouse-alps-1.3-alt.tbz partially works on my Dell Inspiron 13z. My touchpad that is previously recognized as PS/2 Generic Mouse is now recognized as AlpsPS/2 ALPS GlidePoint. I can finally disable mouse click by tapping while typing. However, like Miguel's case, there is no edge scrolling and random choppyness. It especially happens when I press the touchpad very lightly.
I also confirmed that like Miguel, the patch psmouse- alps-1. 3-alt.tbz partially works on my Dell Inspiron 13z. My touchpad that is previously recognized as PS/2 Generic Mouse is now recognized as AlpsPS/2 ALPS GlidePoint. I can finally disable mouse click by tapping while typing. However, like Miguel's case, there is no edge scrolling and random choppyness. It especially happens when I press the touchpad very lightly.