I have the last rev ibooks. Also older Tibooks. Now, why do I need bluetooth? I think the only reason I would want it is that I heard you can synch up your cell phone with it and also there is some cheap on line international satellite phone service where you can call someone through your computer for like, a dime. Other than that, having a bluetooth keyboard isn't that interesting to me; or mouse, or whatever. I just have someone who has an internal bluetooth module and I was wondering if it was worth it to put in an iBook for travel. Any comments pro and con bluetooth, since i have no idea what it even really is, would be very appreciated!