"acknowledging that the SproutCore approach from the past four years needs to be ditched in favor of a brand-new codebase" This is just flat out incorrect. SC

"acknowledging that the SproutCore approach from the past four years needs to be ditched in favor of a brand-new codebase" This is just flat out incorrect. SC 2 is a more moduler SC 1.x runtime, not an entirely new codebase. Similarly, SC 1.x apps will be able to run almost unchanged on SC 2 once their UI frameworks are updated for the changes in the SC 2 runtime. The only "change" is that instead of making Web-app style opt-in, and Desktop-style the default, Web-app style is now the default and Desktop-style is opt-in. That change could have easily been made on the SC 1.x runtime as well, but it makes the most sense to do it on the modular, tighter SC 2 runtime for obvious reasons.