The forums pointed me to the coolest little virtual breadboard tool called Fritzing. Download here http://fritzing.org. It is still in Alpha, but already very useful as seen below. It is more a documentation tool as it does not do any circuit simulation. But it does have a full tool library of the most common components. You can also add your own parts to a user parts Bin. Someone on the tinyclr.com site added a Fez Mini board to the library. So I just downloaded the part and imported it with Fritzing. This makes it almost a joy to hookup circuits before committing to solder or BB. You can almost grab the parts they look so good. The results are so clear it is just a great way to noodle out and document a project for blogging or documentation of your projects. Another nice feature is it also has a schematic editor, and PCB editor views that stay in sync. Nice application so far and look forward to final release.
Fritz also makes it easy to share your project with a single file *.fzz: