Apps for Android phones

Hi I currently have an app for the iphone which works great, i am now looking to have this app developed for Android phones. The Application is a desktop order form system which autolooks up info from an online database. All of the database work is done and we just need a front end, which will need to be configured to the php scripts for the auto look up. Please only bid if you have existing feedback to demonstrate that you can develop this item. Thanks