There are two Chinese input methods available for iPod Touch and iPhone. They are NativeCn and iCosta. Both can support 1.1.2 firmware now. I already installed NativeCn, as at that time only this one can support 1.1.2. Now iCosta has been updated to support 1.1.2. iCosta has better word libraries and support landscape keyboard. As both will do something to the keyboard settings, I want to know whether they will conflict with each other when both are installed on the same iPT. I installed iCosta and NativeCn. Both works perfectly without problems. Just tap the global key to switch the input methods.