"...many enterprises are not accounting for the costs and complexities of doing data integration between the clouds and the enterprise, and since they are typically moving to cloud computing providers for the cost savings, you need to consider that as well. In some instances, moving to a cloud provider could actually cost more, when considering the data integration costs."
I agree with David. In the context of outsourcing EDI and B2B to a cloud (managed service provider) there needs to be a very efficient way of connecting to the cloud if you want to save time and money. SAP BPO partners in the EDI/B2B space have understood this point and developed B2B managed services offering on SAP's Netweaver PI infrastructure. Why? To simplify the integration between SAP and the Cloud. If the cloud is running SAP Netweaver PI and the SAP user as well, then you have a simple Netweaver-to-Netweaver integration and you avoid the expense and hassle of large integration projects.