Satya's Blog, one of the MSFT big wigs, indicated that the GP to CRM integration is going to be released this week during Convergence, availaility will be next month.  He indicated in this post how excited they are about delivering a User experience. 

I would say that our product has given users a similar experience:  Accounts and Products coming into CRM from Solomon, Orders coming out of CRM into Solomon, then the invoices coming into CRM after they are generated.  

This type of integration makes CRM sing.  We have gotten great user feedback.

Infuse is a certified Solomon to CRM integration.