It would be nice to be able to generate custom keymappings in both OPIE and GPE. (in addition to just remapping the standard key mappings)
Sharp ROM and Cacko have a utility called keyhelper which allows users to enable sticky keys and also create keyboard shortcuts like Alt+Tab to switch tasks like in Windows How can this be done in OPIE? Although OPIE seems like a nice replacement for Sharp/Cacko, the lack of this feature really makes it very unappealing since on a clamshell model, the keyboard is the main and most used interface to the Zaurus in addition to the stylus.
On most X servers, enabling accessx would enable sticky keys, which does not seem to work or is not very well documented in GPE. There is also a set of tools available to configure accessx features once enabled. It would be nice and very useful if the accessx tool (ax) was available for GPE.