You can use any of these bots with our regular instructions. Eventually there will be a migration plan from the @gmail.com bots, hopefully in as transparent as way as possible.
And if you were curious just what usage level we're up that rate limiting is being triggered, here are some stats:
Total party chats: 846
Party chats active in the past week: 247
Average subscribers per chat: 2.39
Most subscribers in a chat: 35
Total subscribers: 2020
Subscribers active in the past week: 741