Actually, this was discussed at the last session of Alt Conf. WebObjects is "Server Side Swift." (SSS) If you look at EVERYONE that presented during the keynote, they all had a hand in developing WebObjects. I think this would be the Apple play:

* A lot of App developers develop iOS first as it is (Think Instagram). * The entire toolchain is provided by Apple. From IDE to digital distribution. * However, they have to go outside of the Apple ecosystem for Servers. * What if Apple could provide - along with distribution a server side EC2 style service. * Then, developers could use Swift in the cloud and their apps.

Here is the kicker: * Now developers can develop Web Apps to push to Android and Windows phone devices with a completely Apple toolchain.