Thanks a lot everyone, your responses are really helping me to understand construct just a little more every time. Another question, more specified this time, I have a game that I`m currently working on aside from my other projects of course, and it`s layout size is set to 400, 500, -- it`s margin size is set to 400, 500 -- and it`s window size is set to 400, 500 -- now I understand that using scale outer or inner will help me to accomplish compensation of varying screen sizes, but can I get a specific example using the numbers I just gave perhaps how to allow this game to be able to be presentable to the android user of, Samsung Galaxy S1 = 480 x 800 -- and The Samsung galaxy S3 = 720 x 1280. Would I have to target the Samsung Galaxy S1 screen size specifically or would I have to target the S1 and then size it down?