Hi,
I am a MacBook Pro 4,1 user and completely blown away by the new 2.6.28. Everything that didn't work quite before seems now to be solved. Still, one suggestion that would make my life (and the one of some fellow-users) more easy regarding the sound driver hda/patch_realtek.c is the line in the following patch:

--- patch_realtek.c~ 2008-12-25 00:26:37.000000000 +0100
+++ patch_realtek.c 2009-01-10 11:22:15.000000000 +0100
@@ -6779,6 +6779,7 @@ static int patch_alc882(struct hda_codec
case 0x106b00a1: /* Macbook (might be wrong - PCI SSID?) */
case 0x106b00a4: /* MacbookPro4,1 */
case 0x106b2c00: /* Macbook Pro rev3 */
+ case 0x106b3800: /* Macbook Pro rev4 hpsaier*/
case 0x106b3600: /* Macbook 3.1 */
board_config = ALC885_MBP3;
break;

for some reason the suggested fix with the "options" line in modprobe.d does not work, so I would really appreciate if you added the subsystem id in future kernel releases.

thx
hpsaier