In my experimentation with different Arduino compatible boards, I’ve come across a number of ways to connect to the host computer. I’ve used the FTDI friend from Adafruit, and wanted to re-use it with the Seeeduino Stalker board. Unfortunately, the Stalker has its own means to connect (via a Zigbee sized adapter).
Using the included rainbow cable, I hooked up patch cables to the appropriate power and signal connections. Works like a charm.