diff --git a/bin/Rakefile b/bin/Rakefile
index 97aa0e98..bcea9858 100644
--- a/bin/Rakefile
+++ b/bin/Rakefile
@@ -27,7 +27,7 @@ task :sim do
     bin = File.join(template, 'sim')
     if !File.exist?(bin) or File.mtime('sim.m') > File.mtime(bin) or File.mtime('builtin_debugger_cmds.h') > File.mtime(bin)
       define = "-DSIMULATOR_#{template.upcase}"
-      sh "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang #{define} -mmacosx-version-min=10.6 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.7.sdk -I./src -std=c99 -Wall -O3 sim.m -o \"#{bin}\" -framework Foundation -framework ApplicationServices -L. -ledit -Wl,-rpath,/usr/lib -I."
+      sh "/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/clang #{define} -mmacosx-version-min=10.6 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.7.sdk -I./src -std=c99 -Wall -O3 sim.m -o \"#{bin}\" -framework Foundation -framework ApplicationServices -framework AppKit -L. -ledit -Wl,-rpath,/usr/lib -I."
     sh "#{STRIP} -x \"#{bin}\""
     end
   end
diff --git a/bin/sim.m b/bin/sim.m
index de3b66d3..95552987 100644
--- a/bin/sim.m
+++ b/bin/sim.m
@@ -1,4 +1,5 @@
 #import <Foundation/Foundation.h>
+#import <AppKit/AppKit.h>
 #import <ApplicationServices/ApplicationServices.h>
 
 #import <objc/message.h>
@@ -954,6 +955,16 @@ gdb_commands_file(void)
 	exit(1);
     }
 
+    // Open simulator to the foreground.
+    if (!spec_mode) {
+	NSArray *ary = [NSRunningApplication runningApplicationsWithBundleIdentifier:
+	    @"com.apple.iphonesimulator"];
+	if (ary != nil && [ary count] == 1) {
+	    [[ary objectAtIndex:0] activateWithOptions:
+		NSApplicationActivateIgnoringOtherApps];
+	}
+    }
+
     if (debug_mode == DEBUG_GDB) {
 	NSNumber *pidNumber = ((id (*)(id, SEL))objc_msgSend)(session,
 		@selector(simulatedApplicationPID));
@@ -1204,11 +1215,6 @@ main(int argc, char **argv)
 	signal(SIGPIPE, sigcleanup);
     }
 
-    // Open simulator to the foreground.
-    if (!spec_mode) {
-	system("/usr/bin/open -a \"iPhone Simulator\"");
-    }
-
     [[NSRunLoop mainRunLoop] run];
 
 #else // !SIMULATOR_IOS