JAYSCOTTGOLD  Great program, especially for long range planning. Best support of any program I've ever seen. I emailed Jeff about an issue and heard from him within a few minutes. He said he would update the program to address the issue and did so the same night! I'd gladly pay more for programs to receive this type of support.  
(Version 1.5.1)

MACINTOSH SAUCE  Since I am going to be a secondary Social Science teacher soon, I was looking for an excellent program to make lesson plans on my Mac. From looking at the demo, I can see there are many useful features for a teacher. I especially like the report features...

Along with Gradekeeper, this program will make my teaching life much easier.  
(Version 1.3.3)

MACINTOSH SAUCE  @ Jeff

Thanks for updating your program description to let us know that the upgrade is free. I had assumed there would be a paid upgrade... Duh!  
(Version 2.0)

STEVE HICKEY  This is a great application that I use everyday to keep myself and my students organized. The support is personal and as fast if not faster than I have experienced .  
(Version 1.3.2)

HERM  I have been using Planbook for two years as a repository for my daily, weekly, and yearly lesson planning. I have found it to work as advertised and help me to keep track of information. My students constantly comment on how clear their two week calendar is to follow.

I have found the developer very receptive to ideas, improvements, and bug fixes.

I highly recommend using this piece of software in planning for your courses and in creating student calendars.   
(Version 1.3.2)

LBRDRAGON  I have been using PlanBook for a year now and I am constantly impressed with it's abilities. The program is very user friendly and accepts a wide variety of schedule types; standard, rotating, etc. Jeff is always responsive to any glitches or problems with the program. He is quick to patch any problems that are found. Jeff is also constantly adding new features, such as syncing to iCal. As a teacher himself, he is aware of the flexibility teachers need in a planbook and comes through for us!  
(Version 1.3.2)

DJC13  Program works as specified... Author is very responsive to suggestions for new features and responds quickly (through the yahoo group) to questions. I posed a question on a Saturday afternoon and got an answer (2 solutions) on Sunday. This is a teachers' program designed BY a teacher. I have used it for more than a year and it keeps getting better.  
(Version 1.3.2)

MARK G  A fantastic app! I am almost looking forward to planning lessons for the new year.

This app is regularly updated and the developer responds to several questions a day via the Yahoo group set up for this, despite being a practicing teacher himself

Recommended (as Apple did too!)  
(Version 1.3.2)

DPARRY  Fine replacement/companion to the paper planbook. The program continues to evolve, so features are regularly improved and added by Jeff Hellman, its very attentive, enthusiastic developer. Very good implementation; great potential.  
(Version 1.0.6)

MACINTOSH SAUCE  Where is upgrade pricing for 2.0? I don't think it is nice to ask your customers to pay full price AGAIN just because you bumped it to 2.0 from 1.5.  
(Version 2.0)