All the winning entries work with the VistA open-source EHR software used by the VA, and are themselves open source, which will perk up the ears of foreign countries whose entire EHR infrastructures are built upon VistA.
The winning team's entry, Health eTime, is working code that can set individual, group, and patient appointments, with a ton of features that form the basis for all sorts of intriguing resource utilization analytics. I saw a brief demo, and marveled at Health eTime's capabilities. Care coordinators are truly project managers with the ability to schedule and re-schedule sequenced appointments and appointment-dependent tests, assisted by Health eTime.
As to providing physicians and patients with unified glances at their schedules, Health eTime supports the CalDAV standard*, a way for calendars on smartphones and tablets to receive automatically "pushed" updates to their calendars reflecting moved, added and changed appointments. Those subscriptions, unlike ordinary emails, are securely delivered. And they don't just wind up in someone's voice mail or e-mail inbox. (Although I note with dismay that CalDAV support is spotty on Windows phones and some Android phones, iPhones and iPads support CalDAV beautifully.)
Health eTime's patient portal also can be populated from VistA to serve up directories of providers. Once a patient chooses a provider, Health eTime can display that provider's free and busy time slots.