Trammell Hudson writes in about the TIMESQUARE watch class he held at NYC Resistor:

We had a great class yesterday. Four of the students had never soldered before, but the kits went together really easily and all eight worked on the first try.  We took a little longer on the assembly than I had expected — 2.5 hours instead of 1.5 — and as a result the software portion was a little bit shorter than I had planned.  Everyone successfully compiled and re-flashed their watches using the arduino IDE and the FTDI friend, so they should be in good shape for experimenting with them.

TIMESQUARE DIY Watch Kit in five colors!