Can droid bionic be used offline in Mexico to access stored app such as translator in Mexico?
Yes, as long as the app itsself does not require a data connection. Your best option would be to put your phone into airplane mode, turning off all cellular radios, and making sure you do not get any roaming charges. While in airplane mode, WiFi can still be turned on and off if you wish to connect that way. This will not use any of your data allowance.