zzzzzzzzzzz

Nothing here, move along

I can already see a use for femtocells which the operator might not have thunk of: Avoiding roaming charges. Bring your own femtocell while traveling, and you no longer need to roam onto the local networks; better that than leaving it unused at home.

@EmpFrom: Unfortunately it's likely the femtocell listens to nearby base stations to ensure it's operating in its 'home' area ...

I think you'll find they will have GPS units fitted in addition to listening to neighbouring cells. However, its unlikely that the operator will allow you to relocate your femto..