New team collaboration / messaging apps are seemingly everywhere, from Trello to Slack to (now Microsoft-owned) Yammer. A new entrant Talko is interesting not only for its pedigree -- the team is led by Lotus Notes co-creator and former Microsoft Chief Technical Officer / Chief Software Architect Ray Ozzie -- but because it marks a return to the days when our phone was a tool for voice communication, instead of primarily text or pictures. In an introductory blog post, the Talko team describes an app that lets users talk, share and do. The idea is that communicating by voice while everyone is online is easier and others can catch up with the conversation at any time since the data is cached on Talko's servers -- Danny Ferry would probably not approve. Right now the app is iPhone only, while Talko says Android and web apps are on the way.