No specific info about version 0.3. Please visit the main page of mySIMBL on Mac Informer.
SIMBL is a simple system for loading custom code into Cocoa applications.
This tool helps you decrypt and convert e-books in batches.
InputManagersManager allows you to manage your InputManagers.
SIMBL - pronounced like "symbol" or "cymbal" - enables hacks and plugins.
Creates an application bundle from an editable AppleScript source file.