This is very exciting and I can’t wait for the day where everyone makes awesome gadgeteer modules. I have seen some by the community already and now I see it from a company.
Here you go http://sytechdesigns.com/GadgeteerProduct.html
I am waiting to see some code/schematics/samples to make sure those modules like the accelerometer/display will work on spider. This is what gadgeteer is about anyways.