It\'s only Qtopia that is crashing. The problem is that Qtopia 1.5 runs all the plugins (like applets and input methods) under the same process as the main Qtopia process, so if a plugin crashes then it crashes the whole Qtopia process.
I think Trolltech improved this in Qtopia 1.7 which runs the plugins under a separate process, so if Sharp moved to 1.7 then it would be a lot more stable.