Thanks sberman - was trying to clean up the iTunes apps on computer.
Have deleted different apps in the ipad and iphone section of itunes on the computer - some apps where on both tools but I use these tools differently and am trying to set them up accordingly without all the apps I get downloading on both (also the ipad doesn't have as much storage).
So if I now sync each device will they sync as individual devices according to those two sections in itunes which have now been edited and updated ie. if I have deleted an app in the ipad part but still want it on iphone will it remain remain on the iphone when it's synced.(or is that "sunk"!)