I have worked with flex sdk 4.0 for one of my project now i want to learn using flex with ipad. I tried to google a lot but din found any satisfactory documentation or material to learn. Can anyone help me out with how, what and where to start learning flex for ipad..?
You'll need the Flex sdk 4.5 or higher to develop for iPad (or Flash Builder 4.5 or higher). I'd start with looking around in the tutorials here: http://www.adobe.com/devnet/devices/mobile-apps.html.