Looks like it is pretty trendy to include the letter "i" in front of any gadget if it were to move in terms of sales these days. Check out the iRing concept that hooks up with, yep, you've guessed it - the iPod and the iPhone. What does this concept device do? For starters, this wireless device communicates with either your iPod or iPhone via Bluetooth connectivity, enabling you to gain full control over playback and volume levels of both ...