Instead, dev console automatically shows, game tries to launch, closes with this information appearing in console:
---- YOU CAN CLOSE THIS LAUNCHER IF THE GAME STARTED OK ----
---- (We'll do this automatically later ;D) ----
Client> Exception in thread "main" java.lang.UnsatisfiedLinkError: /Users/user/Library/Application Support/minecraft/versions/1.6.1/1.6.1-natives-1372690592054790000/liblwjgl.jnilib:  Library not loaded: @rpath/libjawt.dylib   Referenced from: /Users/user/Library/Application Support/minecraft/versions/1.6.1/1.6.1-natives-1372690592054790000/liblwjgl.jnilib   Reason: image not found
Client> 	at java.lang.ClassLoader$NativeLibrary.load(Native Method)
Client> 	at java.lang.ClassLoader.loadLibrary0(ClassLoader.java:1878)
Client> 	at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1795)
Client> 	at java.lang.Runtime.loadLibrary0(Runtime.java:823)
Client> 	at java.lang.System.loadLibrary(System.java:1045)
Client> 	at org.lwjgl.Sys$1.run(Sys.java:73)
Client> 	at java.security.AccessController.doPrivileged(Native Method)
Client> 	at org.lwjgl.Sys.doLoadLibrary(Sys.java:66)
Client> 	at org.lwjgl.Sys.loadLibrary(Sys.java:95)
Client> 	at org.lwjgl.Sys.<clinit>(Sys.java:112)
Client> 	at atn.F(SourceFile:1851)
Client> 	at net.minecraft.client.main.Main.main(SourceFile:37)
Game ended with bad state (exit code 1)
Deleting /Users/user/Library/Application Support/minecraft/versions/1.6.1/1.6.1-natives-1372690592054790000