As a PDA this device is great, but the phone has three major functionality issues that need to be resolved. I'm writing this in the hope that Palm will read it and make the necessary software changes.1. 3-Way Calling. When the second call of a 3-way is initiated, there is no way to end this call selectively - i.e. you have to hang up on both callers in order to end the second call. This situation will come up very commonly if for example you realize that you needed to call a different second number than the one originally dialed. With a normal cell phone there is a red hang up button that allows you to end the second call without ending both calls. On this phone there is no such functionality. The only hang up button is a &quot;Hang Up All&quot; button that kills both calls. I have found this to be extremely frustrating.2. Call Waiting. This problem is essentially an extension of the one I just described. If a second call comes in, and you choose to answer it, there is no hang up button to selectively end one of the calls. If for example you want to end the second call, and go back to the first call, you will find yourself unable to get rid of the second call. If you use the &quot;Hang Up All&quot; button, you will end both calls. If you simply say goodbye to one of the other callers without hanging up, the phone keeps one line open on hold, and double air time is accessed during the duration of the remaining call.3. Voice Mail Notification. Most business users are accustomed to getting an aural alert when there is new voice mail, and this aural alert can be set up to continue at some interval of time (say every 2 minutes) until a button on the phone is pressed to acknowledge that you know there is voice mail waiting. This phone has no such functionality. It lets you select any ring tone and volume for the voice mail alert, but there is no option to have it repeat itself until it is acknowledged. If you happen to be away from the phone when the first alert is made, you will never hear an aural alert. This is not a major problem for many users, but it is a big problem for people using the phone for an occupation that requires them to be on call, and they can't afford to miss a voice mail.