Have to agree with you, Guy. I can see a small niche for this, but foresee some major practical issues:

- Many businesses are tenants in shared/leased buildings and don't have the right to bolt things to the roof or walls or run cabling through public areas
- Most building owners will probably want fibre into the site anyway
- Huge manageability / security issues where the devices running over the wireless connection are inside the firewall (big issue for hosted business VoIP generally)
- Unclear whether this technology is line-of-sight only or not