I have found a mod to disable Cell services and remove the associated apk's, I will be testing it out shortly.
What it does:
Removes unnecessary apps (Messaging.apk, Phone.apk, TelephonyProvider.apk, Mms.apk, TelocationProvider.apk)
Completely turns off cell radio on bootup
Installs the radiooptions binary in case your ROM does not include it
Prevents emergency calls and 911 calls (good for giving your kids your old phone to play with)
Unfortunatly i can't post links but the mod is on rootzwiki [MOD]Any phone, any ROM: Wi-Fi only mode (disable cell radio)