"Madden Wii doesn't support the Wii friends system during online play," he said. "This is something we're still working on with Nintendo. For now our online play uses your EA Nation Persona to search and manage your EA Messenger account." IGN does not press further as to why EA made this decision, leaving us to only speculate the reasons why. Perhaps EA is as distraught with the system as many Joystiq readers have conveyed.
No voice chat will be available during online play, relying instead on EA Messenger for communication (details on how were also not given), but alongside DS connectivity was not ruled out for Madden 09.
[Via Nintendo Wii Fanboy]