I just installed Minutes Plus yesterday and I was so impressed with its power I thought I would let everyone know about it.
I used to use cell plan tracker on my old Treo, but to me Minutes Plus is much better. For one it rounds your minutes up just like the phone company which gives a much more accurate count, it even tells you how many minutes they are "gipping" you on each month with the difference.
Another feature it has over cell plan tracker is you can go back a lot of billing cycles instead of just one to see your calling patterns. It will let you setup minute counting for any plan that I have seen on the market. I was even able to setup a separate bucket for mobile to mobile using certain prefixes. The billing cycles are automatically switched at the end of each cycle. In addition to all of that it will alarm you if you use over a specified # of minutes, and the screen is totally customizable so you can see exactly what you want to.
He has another program on his site too that is really great:
http://home.triad.rr.com/rlwhitt/palm/
It is called directory assistant.
It is an app for finding personal phone #'s and addresses and then will call them, make a contact out of it, or give you driving directions. You can even choose the address from any contact in the driving directions menu. It uses 555-1212 for the contact info and Mapquest for the directions. Even though you can go to a website and retrieve all of this info, using a program like this is much faster and integrate with the phonebook.
This is first writing a post about any programs, I was just impressed with them especially since they are free. I even sent him a donation.
I also recommend zlauncher. The ability it has to automatically move programs to memory card and all related databases, and create a link, is worth it alone. I looked at launcher x and liked zlauncher better, I didn't see any feature that launcher x could do that zlauncher couldn't and launcher x is $6 more. There is another thread about how to see the battery % without removing the stylus, the solution I found was to use zlauncher and with a one button push you can view the battery %.
Sorry if there are any typos in this post, it was too long to go back and reread. I've got to go.