I have recently completed the PSD I course here at scrum.org and was very pleased with its contents and goals. In addition to this I have achieved the CSM with the ScrumAlliance. With over three years solid Scrum experience I would like to move further. However, I have run into a slight problem at the onset of this journey: both of these Scrum organisations do not seem to takethe other's qualifications into account when applying for further education where experience and merits are required.
Seems a pity that I cannot progress unless I choose either Scrum.org or ScrumAlliance.
If we consider past experience (and in agile practice we usually do), we should expect that there'll be new organisations and certifications in the future. An agile practitioner should have a broad understanding of agile methods and their evolution, including XP, DSDM, Lean, Kanban, and TDD as well as Scrum. Don't be tempted into making a narrow choice. The present differences between Scrum.org and the Scrum Alliance are a mere bagatelle in the scheme of things.