I'd like to appologize for and note that we have did not finish the arm code for the widget board in full, thus expansion port, rtc (and possibly other things I forgot) are not yet there. However, it would be wonderful to see you guys continue to develop that. In any way, the widget board will give you perfectly lag-less joystick and C64 plus C65 keyboard support with the current widget board firmware, very different to "other" soutions available on the market. Widget board is being referred to as DM65PIC by MEGA member sy2002): https://github.com/sy2002/DM65PIC
cheers,
deft