Planner is being worked upon, the topic is found at:
OneNote has been added and can be found in the store link within Teams.
Other items are still being added and third party bots and apps are being created as well.
An error occurred while saving the commentIsaac Rodriguez commented
This will be a great addition to teams. The ability to have my personal notebook together with web pages to the locations I care about (my filter in Jira for issues, tasks assigned to me, etc.) will greatly improve my productivity.
The ability to use multiple Teams accounts at the same time is supported on iOS & Android today. The feature team is continuing to work on support for multiple accounts on desktop. We’ll keep you posted as we have more details.