Smart Driving Assistant: Just plug the Automatic Smart Driving Assistant into your car's data (OBD-II) port and it provides you information about your driving habits to your iPhone.
XiStera: XiStera is a multipurpose gadget that attaches to the top of your iPhone and combines 8 iPhone tools in one device. It can function as pocketable lens adapter, stand, tripod, headphone wrap, stylus, bottle opener & keychain with optional lighting.
iRig Pro: The iRig Pro features compact audio and MIDI interface that allows you to make music on the go.
iPhone 3D Movie Adapter: The MY3D Viewer by Hasbro gives you access to 3D videos and apps with your iPhone or iPod touch.
Hangout Case: Hangout Case is a iPhone multi-tool case that features a bottle opener, built in tripod, and more.
iPhone DJ Mixer: The iPhone DJ Mixer allows you to mix music from two iPhones or iPods or Mp3 Players.
Handpowered iPhone 5 Case: This handpowered iPhone 5 case will make sure your gadget never runs out of juice.
iPics 2 Go: The iPics 2 Go from ION works as a scanner for iPhone 4 & iPhone 4S.
Microbescope: The Microbescope turns your iPhone into a powerful pocket-sized microscope.
SoundClip: This iPhone audio booster directs sound from the iPhone speaker towards you for increased clarity and volume; it amplifies the iPhone audio by 10dB gain between 6kH and 20kHz.
Boxwave Keyboard Buddy Case: BoxWave's Keyboard Buddy case features an integrated wireless Bluetooth keyboard with backlit keys.
TaskOne iPhone case: This compact iPhone case comes with sixteen tools, that can be of great use during outdoor activity.
Bladepad: This cool iPhone case is thin, has a removable mobilegame controller for iPhone 4S, iPhone 5, and iPod Touch 5th gen.
Dot iPhone Panorama Lens: This panorama lens takes fully interactive 360-degree video on your iPhone.
Bloombox: The Bloombox is a ceramic iPhone amplifier, dock and planter.
15 Useful and Best iPhone Gadgets - Part 5.
15 Cool and Awesome iPhone Gadgets - Part 4.
15 Coolest and Most Creative iPhone Gadgets - Part 3.
15 Cool Products and Gadgets for your iPhone - Part 2.
15 Creative Products and Gadgets for your iPhone - Part 1.