O.k., it really isn’t Google Wave, but have you checked out Google Shared Spaces yet? Google describes its new Lab’s service as follows:
In many ways, Shared Spaces looks like Wave stripped down to a box for chatting and gadgets to decorate it with. Sharing is super simple and the boxes can be used in an almost disposable way – got something to discuss or want to play a quick game with friends? Navigate to Spaces, open a chat box with your chosen gadget and invite friends via URL. Available gadgets include a “yes/no/maybe” gadget, map gadget, draw board gadget, a waffle gadget that facilitates event set-up, shared sudoko game, map cluster, travel with me gadget, colcrop game, listy gadget, browse Amazon gadget, and a Concept Wave mindmapping gadget. Get notified of new gadgets by subscribing to the Shared Spaces feed. You can log into it using your Google account, Twitter or your Yahoo account.
Check out the slide deck on Shared Spaces here. Would love to hear what you think?