tim7:
Have the changes made to the Uno R3 also been applied to the SMD Uno yet? IIRC the original SMD Uno was similar to the Uno R2.
I don't believe so and I suspect the SMD will most likely not be updated in the future. It was a short term solution when the Uno board was first released and there was some kind of world wide shortage of the DIP packaged 328p chip. I see no advantages at all for the SMD version Vs the standard version of the Uno board, only disadvantages.
Lefty