iPhone app development

Looking for a developer to create an attractive time tracking and invoicing app. I can provide any UI, graphic and icon design myself. Users should be able to: 1) Create a new project (name it and add client info). 2) Add a job to the project (name it, add description, category and hourly rate). 3) Use timer to calculate the job cost. 4) Add additional fees or subtract deposits. 5) Email the project invoice to client. Possible additional features: 1) Keep track of total earnings. 2) Add a badge when the invoice has been paid. 3) Resend invoice as reminder for late payments.