Maybe some clarification from you? You can access emails on a phone, so you could set up a secret account. You can IM via facebook or other applications via iPhone. You can send texts on an iPhone, that can be deleted later.

I can’t do any of that on the phone in my kitchen.

Sorry, I meant in a standard mobile.

A normal dumbphone cannot run PGP encryption/decryption ; there are apps for that in the Android market for that, and I assume comparable apps exist for the iPhone.

I don’t have an iPhone. I use BlackBerry. There’s an app called Password Keeper where I can store my passwords and other private information. It is basically a NotePad app with a password.