BB Portfolio Management App

We need BB application that will allow users to manage their stock quotes portfolio. The main functions are : - Authentication screen. - News part : displays articles about markets (articles are in html format). They will be provided by a REST web service that returns XML Data. - Watch list : User can add stock quotes to watch list, remove quotes. - Portfolio : Displays the list of quotes owned by the user and allows user to buy and sell quotes. - Current operations : Display status of buy/sell operations, the number of buyed/selled quotes, prices... - Search engine : Used to search for quote symbols and display data related to quotes (data include variation diagrams for day/week/month time intervals, last closing price, introduction price.. Those detailed view will also be accessible from watch list...) Data model descriptions will be provided.? All services will be mocked-up by the selected bider, but the design will ensure flexibility, at limit just data request methods will be modified in order to connect to the production web services. I prefer to use a good design pattern and to separate service layer, model, and presentation layer (use for data providing DAO). Happy bidding.