Among them is a Virtual Switchboard and a Smartphone. This is where SIP with media capabilities can help. With presence and VoIP capabilities, you can be located virtually anywhere there is a network connectivity
Oh, and actually if she got a smartphone, there is no need for an iPod Shuffle. I just picked up a 2GB miniSD card for about £20 (US$40 or so). Shove it in, twice the capacity!
So in place of an iPod, I would swap in a hosted CRM account, such as Zoho CRM, which is free for the first three user.
There you have it. If you have any more ideas, or disagree with any of the choices, please leave a comment!