It's clear that the design of Sony Ericsson's C902 is far more conventional than the likes of the K810 or K850. Gone is the 'small key' design, the keypad now being a sort of cross between that of a W960 and a K800.
I couldn't resist. I went back to Leopard. I've been running Apple's latest operating system for well over a month now, originally 10.5.1 and now 10.5.2, with no untoward effects...