Wave was a layer that live on top of a modified Jabber/XMPP chat server. It sent extra meta data to your messaging client. Depending on your client and meta d

Wave was a layer that live on top of a modified Jabber/XMPP chat server. It sent extra meta data to your messaging client. Depending on your client and meta data sent your client could download JavaScipt applets you authorized. The applet would render the meta data into something like an iFrame to show a Google Document or a PacMan game. Also you could create a separate messaging thread from a single comment but still have a link to parent thread (ala #Slack now.) The branching comments, embedded documents, and ability to create mini applets were the big selling points. But the feature were never well explained and internal implementation was a nightmare. As people could still hook in Jabber with client it was also creating issues with spamming and hacking.