Sikuli is a visual scripting tool that allows users to automate tasks by matching images on the screen without using internal APIs. SeeMonkey builds on Sikuli by providing an API for Sikuli scripts to interact with Android devices through ADB, allowing visual testing of physical Android devices without any app code changes. The development roadmap for SeeMonkey includes improving Jenkins integration, adding more Android-specific APIs, expanding cross-platform support, and creating an API documentation.