There are no restrictions on using Telerik OpenAccess ORM in commercial applications, even in case you are not a holder of a DevCraft license.
The only limitations are coming from the fact that no support contract is included in the Free Edition, which means it would be harder or at least slower to resolve any issues you might experience - although you can still use the online resources and our developer community forums for such matter. I would offer you to consider purchasing a license - the options are described here.
In case you have any questions regarding the OpenAccess ORM capabilities in your particular scenario, do not hesitate to get back to us.
OpenAccess ORM Q2 2013 brings you a more powerful code generation and a unique Bulk Operations support with LINQ syntax. Check out the list of new functionality and improvements shipped with this release.