Being based on open web standards and being open source itself means SproutCore will enable developers to develop cross platform applications without being tied to either a plugin architecture or its vendor.
Sitting on top of web standards will also make it easy for Apple and the community to push SproutCore ahead without worrying about incompatible changes to the underlying layers of Windows, a significant problem for the old Yellow Box or some new Cocoa analog. SproutCore also lives in a well known security context, preventing worries about unknown holes being opened up by a new runtime layer.
These developments are exciting for oru industry, but also for the world as a whole – a solid platform that can be as portable and accessible as the Web, yet have the power of the desktop has long been sought. We may finally have it in our grasp.