Lars Rasmussen describes the three layers that Google Wave has - the product, the platform, and the protocol:
- the product is an HTML 5 app and built on the Google Web Toolkit, functioning as a rich text editor and with desktop drag and drop features;
- it is a platform with open APIs - allowing Waves to be built into other products and for other products to be brought into a Wave;
- the protocol is the format for storing and sharing - with "live concurrency control" allowing edits to be reflected instantly across users and interfaces.
So, as they say in Spanish, Google Wave is "buena onda".....