Here is the result of my search through Sharp Qtopia binaries:
QPE/System
volumeChange(bool)
enableWizardBtn(bool)
linkChanged(QString)
setBlankLCD(int)
setScreenSaverMode(int)
setScreenSaverInterval(int)
setScreenSaverIntervals(int,int,int)
setBacklight(int)
setScreenSaverOnOff(bool)
setSuspendOnOff(bool)
brightnessChange(int,int)
remoteControl(int) ?
remoteControl(int,int,int) ?
registerRemconMaster(QString,int) ?
shutdown()
restart()
quit()
mustQuit()
stopSamba()
startSamba()
startSync()
stopSync()
busy()
notBusy(QString)
execute(QString)
timeChange(QString)
__zoomin
__zoomout
__rotate
__network_connect
__network_disconnect
execute(QString,QString)
addPrivilegeApp(QString) ?
removePrivilegeApp(QString) ?
raiseMenu()
QPE/Network
connectRequest()
disconnectRequest(int)
choicesChanged()
up()
down()
QPE/Card
mtabChanged()
stabChanged()
QPE/TaskBar
setLed(int,bool) ?
reloadApplets()
reloadInputMethods()
updateMenu()
message(QString)
showInputMethod()
hideInputMethod()
changeInputMethod()
rotateInputMethod()
soundAlarm()
QPE/Application/addressbook
addContact(QString,QString) "First Last" e-mail
editPersonal()
editPersonalAndClose()
nextView()
saveXML()
searchPhoneNo(QString,QString)
addPhoneNo(QString,QString)
QPE/Application/datebook
nextView()
QPE/Application/qtmail
writeMail(QString,QString) "First Last" e-mail
sendrecv()
nextView()
reload()
QPE/Application/launcher
escKey()
raise()
nextView()