phonegap project for iphone, blackberry, android

the company has been creating a mobile web app with Jquery Mobile and Phonegap. This App is supplied data as a JSON feed from an online service and is at best described as a dating application, there is profile, list of profiles, chat, offers and places. We have come under a huge amount of workload and we require some help to finish off the application, here is a list of items to complete: 1. CHAT - We have the script, needs modification and testing. 2. MESSAGING - as well as chat there is an internal message system, like email for offline messages and offers. 3. TIDY - we have high definition graphics available to make a retina version but we have not done the work to switch graphics. The job is to complete the application only, any back-end, services feeds etc will be supplied and completed by us at this end, we expect that if something is missing or needed that you will communicate with us and be able to act as part of the team. You will need and be able to provide evidence of the following skills: HTML5 Jquery Mobile Phonegap iphone, android and Blackberry CSS There is not much time here so someone who can dive in and work fast will be ideal, having the ability to travel to Yorkshire and create a long standing relationship will be a positive. I can not post up screen shot until a shortlist has been created, but we do have a full colour storyboard in pdf format ready prepared to work from so visually you will be fully prepared for what is required. Feel free to ask questions. Thanks