I think T-Mobile's new HotSpot@Home service, which offers unlimited calling over Wi-Fi in the home *and* office for just $10/month, will free those 'corridor warriors' today.

Image a consumer subscribes to a $40/month plan, now the enterprise can pay the additional $10/month to give that user unlimited calling when on Wi-Fi.

It's targeted at the home, but it going to benefit the office immediately.

steve