UEXT connector which allow
many existing modules like RF, ZIGBEE, GSM, GPS to be connected
mini USB connector is used which is common and used in most cell phones,
so you do not have to buy other cables
all PIC ports available on 0.1" connectors
0.05"step if you do not want to use Pinguino IDE and want to program
this board with PIC-ICD2-POCKET or PIC-KIT3 you should use also PIC-ICSP convertor
board, same apply for Microchip programmers.