Google (and several users) are reporting widespread outage on its Talk service. Although there's no time set for when the service might return, Google says that it's "continuing to investigate this issue," aiming to give a status update later today, at 1:50PM ET. The service has been reportedly down for two hours.
Update: And it appears to be back, according to both Google and our own accounts. Some users appeared to get an early return to full service, while others had to wait for the mobile apps to recover. Apologizing for the outage, Google stated that, "system reliability is a top priority," and that the company is "making continuous improvements to make our systems better."