There are a few of apps, that for convenience sakes, would work out well if I could load the application on my iPhone4 twice. While on vacation my wife will borrow my iPhone and it would be easy if I had [app]Calvetica Calendar[/app] on my home page twice. One of her, one for me. There are other apps, like [app]Starbucks Card Mobile[/app] and a running app (with GPS). that would be cool if we could share the same iPhone yet have our own applications. Why won't Apple allow the same application to be placed on a single iPhone twice?