I can confirm that xinput test "PS/2 Mouse" outputs relative movements in kernel 2.6.32-21 and -20 while xinput test "AlpsPS/2 ALPS GlidePoint" shows no response. In kernel 2.6.31-21, xinput test "ImPS/2 Generic Wheel Mouse" outputs relative movements for the ALPS GlidePoint in the HP Mini 311.
I can confirm that xinput test "PS/2 Mouse" outputs relative movements in kernel 2.6.32-21 and -20 while xinput test "AlpsPS/2 ALPS GlidePoint" shows no response. In kernel 2.6.31-21, xinput test "ImPS/2 Generic Wheel Mouse" outputs relative movements for the ALPS GlidePoint in the HP Mini 311.