Re: ** iPhone 4 mini-review **
Rage, the signal quality is noticeably better.
By the way, I was able to duplicate that signal loss issue but I had to wrap both hands around the phone and make absolutely sure I had them in the exact spots as on the clips online. It never went completely out though so it appears as though while there is an issue, YMMV.
Also, I have the black bumper coming, primarily to provide a little lift/protection for the rear glass, and I'll see how that helps.
I haven't used slacker in a while, but Pandora is not buttery smooth.