Thanks for your sharing!
My device is Acer E1-470G and it's working fine on OS X Yosemite 10.10.5 with your driver (ver : 3.8.5/4.2/4.3) ,
but there are still some problems:
1ã€When i wake up computer through the touchpad , the pointer will run everywhere on screen or out of response
that i can't control it anymore unless i reboot the system.
2ã€If i use "Esc" to wake up the screen , sometimes the keyboard is not working.