Hi to everybody! Thanks to suggestions given me by Erel, concerning "Designer scripts", I successfully developped a new application as apk file and I installed it on two different tablets with different resolution, without problems. Now, I developped a second application and, when I installed on the same tablet, the first application disappears. Why? Is there a method for installing more than one apk on the same tablet? Could someone be so kind to give me a way to solve this mistery? Thanks.