I have used an online service called Voice Shot for my businesses with great success. I would like to create a small application for the iPhone that does basically the same thing. The user records a message such as a holiday greeting. With the recorder they can pause, resume, stop , save etc much like a typical recorder. (I know there are several recorders on the iPhone applications site). What makes this different is that they then can either send the voice recording by email or more importantly either send it now or save it for a future date and have the iPhone actually call one or more telephone numbers. For example, let's assume I want to wish all of my business contacts on my iPhone a happy holiday. I can record my holiday greeting, decide to send it on Dec 25 (6 months or so from now) at a specific time of the day to one, many or all of the contacts on my iPhone.
Another example would be to record a message for myself to take medication on the first day of every month. I then save the message and my iPhone calls me to remind me to take my meds. Obviouosly it would call another number and not my iPhone number.
There is a bit more to the application but I hope this gives you some more info.
The budget is fixed and it is 350$.
Please bid along with the timeline and your previous sample iPhone work.