Remove SDKs from Mac

I tried several mobile platform SDKs on my MacBook Unibody. These SDKs might get several updates within a year. During the update, there may be left over files which are no longer necessary. Here is a few steps I found online regarding how to remove these SDKs from Mac.

iPhone SDK (now iOS SDK)
1. Open a Terminal window.
2. Type the following command:
sudo /Developer/Library/uninstall-devtools --mode=all
3. Type your administrator password.
4. Wait.

"--mode=all" will remove all SDK and files related to Mac OS development (Note: iPhone OS is a subset of Mac OS). It will remove all install components inside the "Developer" folder.

Qt SDK
1. Open a Terminal window.
2. Type the following command:
sudo /usr/bin/pythonw /Developer/Tools/uninstall-qt.py
3. Type your administrator password.
4. Wait.

Qt Creator
1, Drag its icon to trash.

Nokia Qt SDK
1. Use SDKMaintenanceTool