I don't have a case as yet, but I love that I have so many choices out there. I believe the cases are needed to provide protection. It's great for fashion, too.
LOVELY METALLIC GREEN & BLACK I FROGZ CASE, SO FAR VERY HAPPY WITH PROTECTION OFFERED, THE FEEL OF IT ( VERY SMOOTH ) & I THINK DOES THE IPHONE JUSTICE IN TERMS OF LOOKS & STYLE. REASONABLE PRICE, OTHER COLOURS AVAILABLE , WAS A BIT TRICKY TO PUT ON BUT i FEEL CONFIDENT IN IT'S DURABILITY.http://apsprostore.com/ifrogz-luxe-case-for-iphone-3g-greenblack-p-1044.html?currency=GBP