GMenu2X is a very very good alternative frontend for the gp2x. It supports overclocking, sound volume setting, touchscreen, etc.
GMenu2X allows you to create direct links for your games & applications so that you can directly launch them without having to browse through all the filesystem manually, resulting in a better user experience.
New in 0.10 ----------- New translations: Basque, Catalan, Turkish Added support for the touchscreen Added support for f200 battery Added internal explorer that can launch .gpu .gpe and .sh files Added graphic indicators for switching sections Added on screen help (keep pressed A, only on the main screen at the moment) Cpu clock raised when loading manuals Added support for bmp and jpg/jpeg files for manuals Added preview of images when selecting icons Added option to show the root folder in the selection dialogs Fixed bug that prevented the use of the custom selected wallpaper on restart Lots of fixes
http://www.gp2x.de/cgi-bin/cfiles.cgi?0,0,0,0,7,1724