v1.4.0:
• Link cable emulation (up to 4 players) on the same device. While playing a game, choose "Link" in menu to start a new game, and there you go! A device with 1GHz+ CPU is recommended for this feature.
• Fixed a DMA read bug.
• A better way to detect iCade controller (do not require the bluetooth permission any more).
The next version will support linking via Bluetooth or WiFi, and it will be coming soon!