Among all the accessories for your iPhone, iPad, or iPod touch, cases may be the most popular—and most necessary. They protect your device from scratches and drops and eliminate the antenna problem with the new iPhone 4. Many people also purchase screen protectors, which adhere to the screen and protect from scratches and other wear and tear. And if you're short on pockets, belt-clip cases let you attach your phone to your belt. Some cases double as a stand to prop up your device to watch videos or read, but you can also purchase dedicated stands for your iPad, iPhone, or iPod touch. There are also a variety of specialty cases for activities like scuba diving or cycling.
Arkon Bicycle Mount for iPhone
($19.99, arkon.com) This is a great accessory to secure your iPhone while you ride. Securely holds your iPhone on your motorcycle or bicycle handle bars. No tools are required to install the bicycle mount.
BioLogic iPhone Bike Mount
($60, firebox.com) This weatherproof case fastens to your stem/handlebars via an adjustable clip, allowing you to glance at maps, satnav and GPRS apps, or even film where you're headed. It has a silicone interior, hard outer shell, touch-sensitive screen guard, and a swivel that rotates for portrait or landscape viewing.
GoRide Bike Mount for iPhone
($29.99, bicio.com) Zip ties attach the mount to your handlebars. The case can easily be removed from the mount after your ride. It fits the iPhone 3G and 3Gs.
H2O Audio iDive 300
($349.99, h2oaudio.com) lets professional divers pass the time during their long decompression stops to watch a movie, listen to an audiobook, or listening to music. Submersible to 300ft/90m underwater, it allows for push button control of the click wheel and touch screen on iPod devices.
Overboard Underwater Housing Case
($119.99, over-board.co.uk) All iPhone features are fully usable when sealed in the case, including touch screen functions, phone calls, and photo taking. 100% waterproof and submersible to 6 meters (19 ft.).
($39.99, drycase.com) Pump out all the air with the hand pump and the bag will vacuum seal around the contents and become completely waterproof. The stereo and microphone jack gives you access to all your calls.