> How much longer until we can develop native applications without Objective-C entirely?
You already can --
Lisp: Nu
Ruby: MacRuby/RubyMotion
Basic: Objective-Basic
You already can --
Lisp: Nu
Ruby: MacRuby/RubyMotion
Basic: Objective-Basic
Lua: LuaCocoa, LuaWax, TLC
JavaScript: JSCocoa
Perl: CamelBones