OpenedHand have developed several of the key open source infrastructure pieces of the maemo platform. As well as the Matchbox window manager, which provides the ‘look and feel’ and interaction of the overall interface, OpenedHand rewrote the desktop and task navigator for maintainability and performance, and worked on lower level performance improvements throughout the stack from font and X server rendering speed to flash filesystem performance.

A special area of expertise within OpenedHand is optimising and porting desktop applications to non-desktop platforms. For the maemo platform, OpenedHand optimised Evolution Data Server (EDS) for embedded use - primarily porting it to use the more lightweight IPC mechanism DBus. EDS then provided the base for OpenedHand to develop the address book and presence frameworks in maemo.