Android Database/Spreadsheet Application to import RS232 and Barcode Scans Almost like a POS System

I'm looking for a fairly simple application to be designed for Android - open to other platforms at a later time. I need to be able to Scan a barcode into a spreadsheet or database, and that barcode scan needs to trigger a data log based on an incoming stream of data from an RS232 Serial connection (its actually a weight scale) that outputs in serial format. The spreadsheet/database should also include the date/timestamp from the scan. **Must Haves** Mobile capability - Android tablet. RS232 Data Linked to Scan Data with Timestamp STUPID EASY INTERFACE - the end user lacks a high school education and may have never seen a cell phone in their life (seriously). A means of exporting the data to a PC - CSV file would be fine. Strongly Desired: Sortable database - I.E. The ID scan will be tied to a person and would like to be able to pull data based on that barcode. Ability to total day's results by ID scan and total of all scans for the day (i.e. total weight per ID number, and total weight for all ID's for the day). Plans to expand beyond this job, but not needed immediately: Integration of data export with QuickBooks etc. Integration of a receipt of scan - link to a mobile printer, or emailed receipt or both. Android Mobile Application development experience is a given. Experience with database management software or Excel is obviously important. Industrial Automation experience wouldn't hurt. If you've written POS software before, this should be a cakewalk for you. We might even be able to modify existing POS freeware to meet our needs. I'm willing to pay a fair market rate for this project, or partner up with the right individual. Currently my product offering is designed, much of the hardware has been selected, and target market analysis has been done. If you are providing a quote, I need to see a clear hourly rate and expected time to complete the project. My budget for software has not yet been determined and will be based partly upon responses received to this and other job postings. I do not have a hard launch date, but if I could get this done in a few weeks that would be fantastic. I prefer to work with young, enthusiastic, english speaking individuals who work hard and it shows, but I will not discriminate. Make sure you include samples of your work for my review (obviously). Thanks for reading and I look forward to potentially working with you!