Dear Andrew.
I have read your project description carefully and your images.
I am sure I can do this interesting project..
I have enough experience in iPhone, Android apps ( Online shopping app, Chatting app, Social networking app, GPS app)
Your idea will be surely implemented.
Nice and familiar interface will greatly make you happy and I hope long term relationship with you
I cannot estimate exact timeline and budget right now, because i have some more questions.
Thank you.