diff --git a/.gitignore b/.gitignore
index 02c6a5f6..bd1ec3ca 100644
--- a/.gitignore
+++ b/.gitignore
@@ -6,3 +6,4 @@ build
 .DS_Store
 project.xcworkspace
 xcuserdata
+Credits.rtf
diff --git a/Source/Lettuce.xcodeproj/project.pbxproj b/Source/Lettuce.xcodeproj/project.pbxproj
index 24dfc263..817c58bf 100644
--- a/Source/Lettuce.xcodeproj/project.pbxproj
+++ b/Source/Lettuce.xcodeproj/project.pbxproj
@@ -37,6 +37,7 @@
 		6ADF4DB813727BED00A7C57B /* Carbon.framework in Frameworks */ = {isa = PBXBuildFile; fileRef = 6ADF4DB713727BEC00A7C57B /* Carbon.framework */; };
 		6ADF4DC413727F1B00A7C57B /* Lettuce.icns in Resources */ = {isa = PBXBuildFile; fileRef = 6ADF4DC213727F1B00A7C57B /* Lettuce.icns */; };
 		D4192895137AD26200EB16F7 /* preferences.xib in Resources */ = {isa = PBXBuildFile; fileRef = D4192894137AD26200EB16F7 /* preferences.xib */; };
+		D4F44E77144B4ED4002DEFFB /* Credits.rtf in Resources */ = {isa = PBXBuildFile; fileRef = D4F44E76144B4ED4002DEFFB /* Credits.rtf */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXContainerItemProxy section */
@@ -150,6 +151,7 @@
 		6ADF4DB713727BEC00A7C57B /* Carbon.framework */ = {isa = PBXFileReference; lastKnownFileType = wrapper.framework; name = Carbon.framework; path = SDKs/MacOSX10.6.sdk/System/Library/Frameworks/Carbon.framework; sourceTree = DEVELOPER_DIR; };
 		6ADF4DC213727F1B00A7C57B /* Lettuce.icns */ = {isa = PBXFileReference; lastKnownFileType = image.icns; path = Lettuce.icns; sourceTree = "<group>"; };
 		D4192892137AD25E00EB16F7 /* English */ = {isa = PBXFileReference; lastKnownFileType = file.xib; name = English; path = English.lproj/preferences.xib; sourceTree = "<group>"; };
+		D4F44E76144B4ED4002DEFFB /* Credits.rtf */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = text.rtf; path = Credits.rtf; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -209,6 +211,7 @@
 		6A43430913727B2A0094187C /* Resources */ = {
 			isa = PBXGroup;
 			children = (
+				D4F44E76144B4ED4002DEFFB /* Credits.rtf */,
 				6ADF4DC113727F1B00A7C57B /* Images */,
 				6A43430313727AC80094187C /* InfoPlist.strings */,
 				6ADF4DB313727B8400A7C57B /* McBopomofo-Info.plist */,
@@ -406,6 +409,7 @@
 			isa = PBXNativeTarget;
 			buildConfigurationList = 6A8515D1137277DB0066B1BD /* Build configuration list for PBXNativeTarget "Lettuce" */;
 			buildPhases = (
+				D4052493144B4644006FC753 /* Generate Credits.rtf */,
 				6A8515B1137277DB0066B1BD /* Sources */,
 				6A8515B2137277DB0066B1BD /* Frameworks */,
 				6A8515B3137277DB0066B1BD /* Resources */,
@@ -481,6 +485,7 @@
 				6A3B3A3113A1D44E006A6BA9 /* Bopomofo.tiff in Resources */,
 				6ABEDAF313F74D9C00A0825A /* Localizable.strings in Resources */,
 				6A89E66A13F7647D00DDBF09 /* UpdateNotificationController.xib in Resources */,
+				D4F44E77144B4ED4002DEFFB /* Credits.rtf in Resources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -510,6 +515,21 @@
 			shellPath = /bin/sh;
 			shellScript = "killall McBopomofo\npwd\nls -l\ncp -R $BUILT_PRODUCTS_DIR/$FULL_PRODUCT_NAME \"$HOME/Library/Input Methods/\"\n\"$HOME/Library/Input Methods/$EXECUTABLE_FOLDER_PATH/$EXECUTABLE_NAME\" install";
 		};
+		D4052493144B4644006FC753 /* Generate Credits.rtf */ = {
+			isa = PBXShellScriptBuildPhase;
+			buildActionMask = 2147483647;
+			files = (
+			);
+			inputPaths = (
+			);
+			name = "Generate Credits.rtf";
+			outputPaths = (
+			);
+			runOnlyForDeploymentPostprocessing = 0;
+			shellPath = /bin/sh;
+			shellScript = "Tools/genRTF.py $SOURCE_ROOT";
+			showEnvVarsInLog = 0;
+		};
 /* End PBXShellScriptBuildPhase section */
 
 /* Begin PBXSourcesBuildPhase section */
@@ -648,7 +668,7 @@
 				MACOSX_DEPLOYMENT_TARGET = 10.5;
 				ONLY_ACTIVE_ARCH = YES;
 				PRODUCT_NAME = McBopomofo;
-				SDKROOT = macosx;
+				SDKROOT = macosx10.6;
 				VALID_ARCHS = "i386 x86_64 ppc";
 				WRAPPER_EXTENSION = app;
 			};
@@ -673,7 +693,7 @@
 				INFOPLIST_FILE = "McBopomofo-Info.plist";
 				MACOSX_DEPLOYMENT_TARGET = 10.5;
 				PRODUCT_NAME = McBopomofo;
-				SDKROOT = macosx;
+				SDKROOT = macosx10.6;
 				VALID_ARCHS = "i386 x86_64 ppc";
 				WRAPPER_EXTENSION = app;
 			};
diff --git a/Source/Tools/genRTF.py b/Source/Tools/genRTF.py
new file mode 100755
index 00000000..f812a9b2
--- /dev/null
+++ b/Source/Tools/genRTF.py
@@ -0,0 +1,49 @@
+#!/usr/bin/env python
+
+import sys, os
+os.environ["MACOSX_DEPLOYMENT_TARGET"] = "10.7"
+
+import subprocess, getopt
+from Foundation import *
+from AppKit import *
+
+def generateRTF(inString="", inFile=""):
+	if len(inString) == 0: return
+	if len(inFile) == 0: return
+	paragraphStyle = NSMutableParagraphStyle.alloc().init()
+	paragraphStyle.setAlignment_(NSCenterTextAlignment)
+	attributedString = NSAttributedString.alloc().initWithString_attributes_(inString, {
+		NSParagraphStyleAttributeName: paragraphStyle,
+		NSFontAttributeName: NSFont.systemFontOfSize_(11)
+	})
+	data = attributedString.RTFFromRange_documentAttributes_(NSMakeRange(0, len(inString)), None)
+	try: os.remove(inFile)
+	except: pass
+	data.writeToFile_atomically_(inFile, True)
+	os.utime(inFile, None) # Touch the file
+
+def main(argv=None):
+	if argv is None:
+		argv = sys.argv
+	try:
+		path = argv[1]
+	except:
+		return
+
+	path = os.path.abspath(path)
+	cmd = "/usr/local/git/bin/git log --format='%h' -1"
+	try:
+		p = subprocess.Popen(cmd, shell=True, stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+		lines = ""
+		while True:
+			line = p.stdout.readline()
+			if not line: break
+			line = line.strip()
+			if len(line): lines += line + "\n"
+		lines = lines.strip()
+		generateRTF("Build: " + lines, os.path.join(path, "Credits.rtf"))
+	except Exception, e:
+		pass
+
+if __name__ == "__main__":
+	sys.exit(main())