I have a tentative arrangement with someone to produce the ConnectOne ethernet shield as well as the Tibbo EM500/GA1000 shield (in the event Tibbo releases the long-promised firmware which I have been patiently awaiting for over a year).

They also can modify a bootloader to support the use of the PIC16F88 and PIC16F886/887 comparators to invert TX & RX eliminating the need for RS232 line driver and caps, further reducing the cost of the XINO and XINO Basic use as a simple development system. (I don't know whether this cheat will work at 3.3V.)