I for one, see the reasoning why Google seems to be more intent on marketing a mobile Google phone with searchable listings rather than concentrating on making its GoogleTalk more competitive as a PC-to-PSTN calling service.
It's because search is what Google does best, not talk.
Some will see these as separate initiatives, but the fact that Google has been talking with European wireless powerhouse Orange about bundling what could be a branded Google phone with an Orange-logo tells me that Google wants to leverage its location-based search capability into an ad-supported model.
A model where advertising income for successful searches would be split among the participating carrier and Google. A model in which the call itself would be transacted by the carriers.
That's a model Google understands.
But PSTN termination for wired or wireless calls, under the GoogleTalk flag? Nope, too disruptive. Google may already be noticing how fidgety Yahoo! is getting for fear that the PSTN component of its Yahoo! Messenger is threatening alliances with telecom allies.
So drawing this out to its logical conclusion, Google may already be leaning toward alliances with carriers rather than strategies that would compete with them.