DP67BG + Ubuntu 10.04
All works, except lm_sensors monitoring (which is seems to be totally incompatibly/conflict with linux kernel, at least version 2.6). Suspend/wakeup works great.
WiFi - did not tried the wifi device which come with the board. But TPLink wn722n works fine.
I suggest you think twice before buying any intel board. Look at this forum - lot's of problems with firmware. It's awful.
prooflinks for lm-sensors issue:
(I am getting message
[185181.102424] ACPI: resource w83627ehf [io 0x0295-0x0296] conflicts with ACPI region HWM1 [io 0x295-0x296]
and if I try use acpi_enforce_resources=lax, board is unstable)
seems affects only 2.6.x kernel (ubuntu 10.04), DB67BG board and some other (not only intel boards).