The probably falls in the general category of a Good Thing™ for employees and people developing B2B applications since internal systems are more easily accessible but, this will be a gut check/squeaky bum time for traditional on-premises B2B vendors like PeopleSoft/SAP/IBM and the like. The corporate firewall has always been a bastion of security they have been able to hide their applications behind. As the concept of a corporate firewall begins to fade their security risk increases and previously non-worrisome attack vectors become serious problems for them.