I am trying to decide between the two pda's. I just need an audible alarm feature for the date book, MP3 capability and am mostly concerned that my data from my old palm M125 sync's with my new pda. Do you know if these devices will integrate my address book and date book with this upgrade from the M125? And if they both do it - with as little as I really need for a pda, is the extra 150.00 justifiable to move up to the Zire 72?
If you don't want/need the higher resolution and nicer display of the Zire 72 nor the camera, the go with the Zire 31. You can also consider the Tungsten E reviewed on this site- it's $199, so is cheaper than the Zire 72. It has a high res screen that's superior to the Zire 31 but no camera.