If you move in tech related circles, you may have heard of Google Wave by now which Google hopes will replace the concept E-Mail.
Google Wave is a multimedia communication platform running on an extended XMPP (think jabber) protocol allowing everything from basic instant messaging thru collaborative document modification to voice/video conferencing.
I also discovered in the last few days that Google Wave will also implement an API or ‘Apps’ platform allowing Apps written by third party developers to be run within a Wave. Barring the obvious potential for attempted malicious use of Google Wave Apps, there could be quite a market for new interactive applications which could draw developers from the Facebook API arena.
For now, Google Wave is a limited closed Beta (invite only). I look forward to getting a look-in soon.