They say knowledge is power. And that’s true in a metaphorical sense, but when your iPhone is dead, only power is power. Luckily, the battery-equipped Energizer Energi to Go AP1201 (for iPhone 4) and AP1500 (for 3G/3GS) pack quite a punch, perfect for those times when important chunks of knowledge are locked up inside an iPhone with no juice.
Looking for a case for your spiffy iPhone 3G? Check out this list of every case that's rolled through the Mac|Life offices, from clear plastic shells to silicone skins to luxurious leather wraps. (Rejected headlines included "We've Got Cases, Yes We Do. We've Got Cases...to Review!" and "Casey McCaserson's iPhone Case Bonanza!")
So you bought an iPhone, but as a tree-hugging type, you aren't so excited about purchasing a big hunk of plastic just to keep your phone from getting dinged up. Agent 18's EcoShield is a big hunk of recycled plastic, though, which should make you feel better.
If you're the go-getter type who doesn't have time in your jam-packed day of world domination to fish your iPhone out of a pocket or bag, the belt-clip-equipped Marware C.E.O. Premiere case might be for you.