Inka Pen
If you're looking for a high-tech and easily pocketable pen, then check out this guy. The Inka Pen ($25) is a uniquely designed writing instrument made from aerospace-grade materials like 304 stainless steel and carbon fiber. It can be attached to your keychain, and features a closed pen design that quickly converts to a full-size pen. Oh, and did we mention it has a built-in stylus and writes underwater, upside down and at any altitude.