Prezi Blasts Past 1 Million Users in Australia and New Zealand - PowerPoint Killer?

Software has rapidly moved to the cloud. Think about it:  when was the last time you inserted a CD into your computer? Online SAAS (software as a service) models deliver competitive features that can be iterated rapidly and pricing is flexible and often starts out as free. Microsoft PowerPoint, one of the most incumbent software programs is now under siege from a company called Prezi.