For me first blog post on iDevBlogADay, I thought I’d talk about a part of iOS development that rarely gets mentioned on blogs, Tweak development (or mobilesubstrate development). To start you’ll need: A Jailbroken iOS deviceOSX 10.6+ (or iOS 3.x+)TheosA good knowledge of Objective-C Getting Theos You can get Theos from DHowett’s official Github profile, although rpetrich has a fork which includes