Should we change the native iOS implementation over to using the Swift Programming Language?

[matthewdunsdon]

In a separate issue (#282), @ColinEberhardt raised an interesting point:

Each PropertyCross implementation should show what we believe to be the most effective way of using each framework.

Therefore, I would like to ask whether we, as a community, think that Swift (version 2.0) is the most effective way of doing "native" iOS development for PropertyCross or whether we should stick with Objective-C for the moment?