Those of you making use of T-Mobile's VOIP offerings to save some minutes, hang onto your WiFi. The newly Google-favored carrier has decided to axe its HotSpot@Home service, meaning no more calls over WiFi from home. T-Mo will allow existing subscribers to carry out their existing contracts (if only to avoid giving them an early out), and everyone can still make calls over WiFi at the company's public hotspots, but no new folks will be able to add the service to their accounts, meaning this old offering won't die, it'll just fade away.