Hi,
My name is Jason and I recently stumbled over your post and found your idea interesting and I'm willing to help you work on it.
Firstly, a couple of things about myself. I was born and bred in Australia and I have a degree in CS. I have been working on iOS based projects for a substantial amount of time and I have also dabbled in other forms of development. Considering the amount of projects that I have worked on, I have a broad perspective on what works in an app in terms of aesthetics and operation.
Secondly, I have reviewed the product specs and find that they are feasible to achieve. I was thinking of using an XML based file so that you can add your templates and related images. I was also thinking that the exporting process could send the card to the photo library app on the phone itself so that the user could choose to email the selected ones to themselves.
Considering that it is an iPhone and iPad app, I think more time and effort is required, hence the $1000 bid and the 30 day timeframe. In contrast to the other bidders I feel that a 15 day timeframe is rather impossible to achieve without the app being buggy and have a crappy UI.
I hope that you have considered my proposition and also even if you don't choose me I hope you take those thoughts and ideas into consideration.
Thank you!
Jason