I modified my copy of the Account List sample extensions moderately today (first day playing), I had it show a pull down list of bank accounts only (not cc's, etc.). Then when one is selected, it shows the current balance, and the list of all upcoming reminders for the next 60 days on that account (which i compared against the next 60 days on the displayed calendar). I still have to sort it by date (it's not at this moment), then do some math to do what i want to do, and here's what i want to do:

I liked quicken's feature which said:

You have $ remaining in your checking account until next income in days.

And I want to implement a variation on that which also says "Which is $__ per day remaining until next income".

The moneydance-forecast extension (findable on google) which is open source already gives me the first answer -- that is i can forecast out, find the date of the next income, then see what the balance is coming into that day. What it doesn't do is tell me how many days are left until that day gets here. That requires some calendar arithmetic. I wrote that calendar arithmetic in .net and now have to do it in Java for the extension. The last answer is simple division once i've got the first two answers.

I probably won't continue my development efforts until monday, but since i'm doing this and might share it for free (with source if i can clean it up) I figured i would share progress and comment that it seems pretty easy to do the development, though admittedly is a little frustrating when i get to something i don't immediately know how to do easily and have to look it up.

The process for building extensions is a lot easier than i expected, I realize i have a lot of work to do yet before i can finish, package, name, and possibly share it if it's decent. But the development kit makes a lot of it easy.