It was expected to be out in 2010 or early 2011, but that has been pushed back to do delays.
Mashable said they have a source that said the delay is due to internal “disagrement” about the “design, purpose and execution of the project.” Their source told them the delay was caused by “tales of disorganization and too many different teams working parallel or in conflict.”
The project lead is said to be Vic Gundotra, Vice President, Engineering at Google.
“We’re always experimenting with new ways to improve our products, and we have already confirmed that we are focused on incorporating social elements across Google,” a Google spokesperson told Mashable. “But we have nothing new to announce at this time.”