Two mix two points here: cross-platform and general-purpose. Java & Swing == General-purpose and cross-platform Objective-C & Cocoa == C# & WinForms == Genera

Two mix two points here: cross-platform and general-purpose. Java & Swing == General-purpose and cross-platform Objective-C & Cocoa == C# & WinForms == General-purpose and platform-specific At least in terms of their ORIGINAL goals.