Windows mobile...ha ha
...what a crap OS for a phone. Others have stated it that Palm OS is the way to go and I agree. Even the Jesus phone struggles to keep up with the usability of my aging Palm OS Treo 650 for THE MAIN uses of a phone / pda. Much quicker to find / enter a calendar appointment or send a text message or make a call. Whether they can get the Palm OS replacement out in time before the others catch up is debateable though. The iPhone with a real keyboard would get close if it happens.