Looks like they are trying to compete with Thingiverse, but honestly I dont' see them doing so. Everyone with designs already knows that they can share them on Thingiverse. There really isn't a need for more sites like this. However, I can see why Solidoodle would want a piece of the pie. There is potentially a lot of money that can be made, in running a site like this, not to mention free advertising for their Solidoodle printers.