The promise and potential of cloud computing technology is great but vendor lock-in is a very real and sometimes unexamined risk. Without question, cloud computing represents an evolutionary step in most respects but it comes with it some caveats. As with most technologies, it is hyped as a cure all for all our technology headaches but no such panacea exists. Recently I was called in to work with a new client who was dissatisfied with their current cloud provider. Unfortunately for them this particular provider focused on very closed and proprietary technologies and the costs of changing would be significant. Most often than not organizations fail to enumerate these risks to their cloud technology evaluation process. Openness and transparency in technology is an asset to those looking to exploit cloud computing technologies. Hopefully it will become a more examined variable in the equation of cloud choices. Have you experienced cloud vendor lock-in?