I have been using the GTD method for several months now, having read both books and been lucky enough to get a copy of the GTD-Fast seminar. All outstanding. Like Mr. Allen, I use a Palm - an old Palm, the M505 to be exact. I have been meaning to upgrade (a Treo, maybe) but haven't because I'm waiting for the iPhone. I am not a Mac user (with the exception of iPod/itunes) but I've been wanting to make the switch. My question is for you Mac users. Do you think the iPhone will be able to accomodate a "bullet-proof" GTD system. I know nothing about iCal or Notes. Any suggestions, or should I just upgrade my Palm and forget about all of the cool iPhone hype?