The simple anser is none, they don;t fit the exrras, but if you do fit the connectors you have the following,
Alll the communication pins
Pins 8 to 13
All the analogs
Its a shame that thereis no other break outs, the dispkay uses all the Digital pins 22 to 53 but in fact some are redundant
The touch uses 2 to 7
cheers
Happy coding 8) 8)