WiFi phones: look, will you just forget about hotspots?: "Consequently, business models around VoWLAN will only work in those places where there's already high usage, where lots of costs can be saved - in the home, or at work. Saving 2.7 cents twice a week when calling outbound from Starbucks doesn't make a viable business for anyone. Hotspots might come later, but for now, they're not where the dual-mode action is."