How to secure Google Wave

I’ve read about Google Wave and how many believe it represents the next generation of online collaboration applications. What sort of security policies should we put around collaboration tools (especially Web-based collaboration) that our organization doesn’t fully control? Love them or hate them, online collaboration applications and communication tools are here to stay, and Google Wave is most definitely next-generation. Announced in May this year, it aims to erase the divide between different types of communication channels. Wave brings together email, instant messaging, wikis, forums and other social networking tools and allows participants to edit and reply to content such as text, photos, videos and maps, all in real time. Content, or “waves,” can be rewound to see who said or did what and when. This and other features, such as automated translation, make it a potential killer app, and Google wants it to replace email as the dominant form of Internet communication.

http://searchsecurity.techtarget.com.au/articles/38943-How-to-secure-Google-Wave

Cloud computing has lots of positives, but as you can probably tell, I don’t feel that it’s mature enough yet for enterprises to risk using for anything more than development and familiarization, and certainly not critical, sensitive internal applications