Recently I've started a fork of the acer_acpi kernel module to also pool the 3 hotkeys.
On another note, the patch I've made for acerhk was finally entered the mainstream.
I've moved on to acer_acpi since it supports 64bit distros as well.
I'm up to my ears in homeworks and projects (last year to end my undergraduate degree - yeppieee) so it will probably go gold by May 08.
1) listen for _Q10 (wireless key) event - after it is done, also add the browser and fancy fan buttons.
2) rig the wireless button to run the wireless activation/deactivation method in acer_acpi
3) ask for merge and go mainstream.
some of (1) has already been done.
This will also make the lives of Amilo LI1718 owners much easier...
UPDATE 8/12/07: current work is posted on http://fscamiloa16xx.googlecode.com/svn/trunk/acer_acpi_hkey/
The AML Method PHSR change the values of INF (button id) ,BCMD (0x8B = button pressed) and SMIC (0x00/0xff). When loading this module with debug=4 and press one of the 3 buttons, you'll see (in dmesg) that it sensed the key press. Bad news, SMIC is not updated to 0 as expected and therefore it will act as if the button is being pressed over and over again. Some mutexes are MIA and should be added. acpi-devel list seems to be inactive - so I'll keep searching for a way to acquire an AML mutex...