Apple may introduce an 8GB version of the iPhone 5c this week, according to an alleged internal email from German wireless carrier O2, obtained by German blog stadt-bremerhaven.de. The lower-capacity version of the phone is supposedly shipping to stores today for a Tuesday morning launch. The email describes the new 5c as Apple’s “entry-level smartphone,” and suggests that other 5c models may see reduced pricing, as well. While all…