Update that seems to fix a lot of the issues with the 650 folks have been reporting…Should I update? We highly recommend you take the time to update your smartphone. You will receive direct benefits in memory handling; in most cases, your data will occupy less memory, freeing up more storage space on your smartphone. Additionally, when you’re making phone calls, you should experience improved voice quality using the handset or a Bluetooth headset. [via] Link.
Treo 650 Updater 1.13 (Unlocked GSM version)