idea: second SIM card support

[Myk Melez]

I live in the US but regularly travel to Hungary, and I have a second 
SIM card for use abroad.  I know it's too late for v1, but for future 
versions of the phone, I'd find it useful for the phone to support a 
second SIM card.

There a few different ways it could do this.  Here are some options, in 
order from best/hardest to still-useful/easiest:

1. Have a slot for a second SIM card, and activate both cards at the 
same time. (As roaming fees come down, this option, which allows folks 
in the States to reach me at my regular US number, becomes more attractive.)

2. Have a slot for a second SIM card, and make the owner choose which 
card to activate when turning on the phone. (I've heard there are some 
existing phones that do this.)

3. Have a "storage" (i.e. no connectors) slot for a second SIM card, and 
make the owner switch the locations of the SIM cards to activate the 
other one.  (This at least solves the problem of where to store my 
secondary SIM when I'm not using it, since it is small and easily lost.)

-myk