Nano 3 hardware

Since there does not appear to be a schematic or board for a Nano 3 (the diagrams are annotated 2) is it safe to assume they are identical apart from the 3 having a 328 chip?

Similarly with the manual for the 2?

Can't see any differences but I may not be comparing anything different!

Regards

Chris

You can see the schematic here:

http://arduino.cc/en/uploads/Main/ArduinoNano30Schematic.pdf

Thanks, I saw this but what confused me was the processor shown was a 168 not a 328?