Is it possible to log HTTP connections within an iPhone application?

I'd like to develop an application that can listen for unencrypted sensitive information (info similar to the data leading to a class action filed against Storm8) across one or more iPhone/iThouch applications. I've been unable to find any info on whether or not this would be possible.

• Is it possible to log HTTP (including get/post and headers) data from an iPhone app?
• Is there a log that already exists containing this information?

Bonus:

• Would this be achievable in a "jailed" iPhone environment开发者_如何学C?

Thanks all

That's not possible outside your own app