<i>&gt; this could form the core of yet another cross-mobile-platform development framework</i><p>Why not bridge the &quot;yet another cross-mobile-platform development framework(s)&quot; that were written for Objective-C, the same way Apple did with their frameworks? There is no need to restart them all over again in Swift to access them in Swift.<p>Perhaps you were attempting to suggest that no quality cross-platform frameworks ever materialized for cross-platform development under Objective-C? (there were certainly attempts, including from big players) But if that is the case, I&#x27;m not sure an arguably better, but not dramatically different, language is going to change anything.