I made a little app that does nothing to see if I could put an icon. The icon appear on my iphone, but it does not have rounded corners like every other app.
I read someone saying it doesn't work for jailbroken apps? But cydia etc has rounded corners?
The way I put them on my iPhone is I use a fake Code signing and then I take the .app and SSH into my iPhone.
How can I get rounded corners?
If you're installing the app without a dev license, i.e. dropping the .app into /Applications/, then the gloss and rounded corners effect will not get applied to the icon. You'll have to do that yourself.