YourCall for Palm OS

From Iambic:

YourCall is a versatile utility tool that conveniently captures your post-call dialog and offers a variety of useful follow-up actions you can take after you hang up. Let YourCall handle your calls so you can breeze through your day with confidence.YourCall reminds you to input phone conversation details right after you hang up so you'll never forget what happened during the conversation. Traditionally, to enter information into your planner, you would have to manually exit the phone dialer and go into your calendar to create the follow-up action. YourCall automates this multi-step navigational process by having most common actions available instantly right after you hang up. Version 1.62 added support for the Palm Treo 755p smartphone.