Palm
have a 650 and the problems that go along with it
I have had several issues. First, the bluetooth works fine for only 2-3 calls and then it drops the headset. I have two Jabra BT 250s and one Motorola headset, both are recognized and work great until they stop being recognized. Neither Palm or Sprint have any issues recorded. Other issues I have are:
Backlight cuts out too soon. Phone goes back to desktop and the program you were working on is gone.
I purchased the Voice Signal software off the Palmone website only to find it caused my 650 to reboot constantly. After removing it I have not seen any reboots. They are working on a fix.
The sound quality while not better than Nextel is spotty. Nextel was far superior in coverage around the US. (I am encouraged by the merger and can only hope coverage is improved!)
Lastly, I love the functionality of the unit. I have not experienced any memory problems (I have 1200 contacts in my address book). I store my pictures on an SD card, easy to use and moved some programs there too. The camera takes average pictures, great for showing someone's when they call.
I am hoping Palm supports the software and provides upgrades for Bluetooth (one of the reasons for my purchase) and the speaker, poor location and low volume.
I would buy the phone again however, like a Microsoft operating system, I might wait a few months when the bugs are worked out!