DIY Phone KIT from SEED Studio.
Video: https://www.youtube.com/watch?v=qr7KfNbbDtQ

This is a development board and an electronics kit that allows you to build a small phone with touchscreen and a cardboard case.

Technical details:
Dimensions 200mm x140mm x20mm
Weight G.W 173g
Battery Lithium Cells/Batteries packed with equipment UN3481 -PI966
Microcontroller MT2502
MCU Core 32-bit ARM7EJ-STM RISC processor
RAM 4MB
Flash Memory 16MB
Power Supply 3.3 – 4.2V
Quad-band 850/900/1800/1900 MHz
GPRS Class 12 modem
Clock Speed 260 MHz
Connector 35 PIN Connector & 11 PIN Connector for Xadow
Interfaces External ports for LCD, camera, I2C, SPI, UART, and GPIOs etc.