Screen resolution for creating application for tablets and mobile

Hi All,

Recently, apple has rejected application that we developed in Corona SDK because we developed it in 320X480 resolution and it was not compatible with iPad (so we took off the ipad option and we are uploading it only to ipone)

My question is: if we want to develop applications for android and iOS that will be compatible with tables and mobiles, what is the best resolution that we need to choose? [import]uid: 156140 topic_id: 28639 reply_id: 328639[/import]