Hi all. Newbee here. I have an existing app created in VisualBasic 5 for Windows OS. The app contains a lot of data ( txt files - about 100Mb total ) and the GUI displays the data in charts / graphs, with many buttons, tick boxes, options etc on the screen. I am wanting to change the app to work on multiple OS's. I would like something that would be common and operate on iPad, Mac, Win, Linux. Is there such a platform available, without having to re-code the app for each different OS. I originally thought Java would be the route to take, but it appears it does not run on the iPad. What about using the OS's web browsers to display graphs from the local drive ? All ideas appreciated.