Re: 2nd phone
The GSM specification allowed for SIM1 and SIM2 on a single account (original use-case was to allow a carphone and a mobile phone - this was the days before Bluetooth). Only Vodafone ever implemented it, and even then they never really publicised it.
Easy to see why, really, when they can sell you the same call-and-data allowance twice under the current scheme...
Biting the hand that feeds IT
