Users Interested In Disconnecting Their Landline
According to the latest research from the Strategy Analytics Wireless Network Strategies service, one in five mobile phone owners in Western Europe would consider disconnecting their landline service.

So how feasible is this? VoIP currently isn’t reliable over GPRS and 3G due to high latency (round trip times). VoIP will become more and more possible as the mobile networks improve via HSDPA and latency decreases. Most network operators are currently trialing HSDPA.