Cingular 2125 Wifi and AKU2
So it has been confirmed that the WiFi Radio in the 2125 does NOT exist. So that means there is not a reghack that will let you turn it on. Sad to hear :(
Also it has been confirmed that AKU2 is in the process of being certified for the 2125. So the MSFP (Messaging and Security Feature Pack) should be here soon.