Spree integration with default tables provided by ROI's team when setting up MAS integration with their InSynch module ( http://www.roi-consulting.com/proinsynch.htm ).
Developed and currently only tested with Spree 0.60.1. Mainly just allows selection of SKU currently. Still need to do all the order processing pieces.
Add the following to your Gemspec file:
gem "spree_insynch_integration", :git => 'git://github.com/markalinn/Spree-InSynch-Integration.git'
You will want to speccify a branch in the gem line above if utilizing older versions of Spree.
Everything Else Test
Copyright (c) 2011 Mark Linn, released under the New BSD License