Last week based on a google job offer the rumor that Google is planning VOIP service went through the press. Now The London Times has an article talking about Google launching a free Voice over IP (VOIP) service in the UK.

The article does not say what new indication it is basing its claim, besides the dark fiber job offer. The article quotes an consultant saying that Google could link e-commerce search results with VOIP links to enable customers to directly talk to shops for free - well not sure if this is the killer app.
In general Google's brand value has the potential to make Google's VOIP service more popular than Skype.
More details on Times Online.