android - google app engine app

I need an application including 6-8 different user interface screens with slider bars (design is ready) to input data into google spreadsheet or google database (via spreadsheet or other, similar forms, values 1-100). This app should be compatible to my Google speadsheet or database and could be deployed as standalone Google spreadsheet/database app, mobile platform (Android) and webbsite (Google sites). I believe that most suitable technology for this development is Google plugin for Eclipse (GPE) wich support Google Data plug-in supporting the Google Data APIs (for ex spreadsheets) that is server side of application running Google Apps Engine and client side deployed on Android and traditional browser, IE, Firefox, Chrom, etc This project should be Java/Java script based However there is an ready function in Android tools - SeekBar, [login to view URL] just put it in into the application Another good intro exactly into technology needed for this project is here: [login to view URL] I send you now some details about my application and hope that we are agree that those details will be addressed in your application. I just did some very simple presentation of User Interface and I hope you understand general principles of my app design Please let me know if you accepting in general this design for app. Please see attached files ARW and file User interface 3 in rar format according to demand