iPhone 4 feels terrible to hold!! Case help needed!f

I love the way my iPhone 4 looks naked. However, I think it feels horrible to hold in the hand. It has sharp edges because of the square design, slippery because of the steel and glass, and the antenna issue is real even if people care not to admit it. IMO the 3G/S's rounded curves felt SO much better. Therefore, I am looking for a case that will give me some extra grip, comfort and stop the antenna problem. Protection is NOT an issue at all as I have purchased insurance. Any help would be greatly appreciated. Thank you in advance.

Thanks for the replies. I wish it would fix my issue. However even the Apple Bumper is flat on the bottom and the hard plastic creates the same issue. I almost want to resort to getting an extended battery pack like the Mophie in order to round off the phone and make it more comfortable to hold.