What’s funny about this picture…
Is not that I’ve got Bejeweled 2 installed, but that the icon for it has a black border around the jewel to create the illusion of transparency; since the Springboard background is black, they’ve made their icon as well.
That’ll all change with iPhone OS 4.0 and it’s customisable Springboard backgrounds though, so here’s hoping we’ll see the end of these hacks*. * actually, upon further consideration it seems as though there’s no official way to make your icon transparent – all the other icons that don’t fill out the 57×57 pixels have black around their edges, as well (Peggle, Plants vs Zombies).