Here’s the link, prominently noting one of Twinity’s key features:

Trend #5 – Collaboration Becomes Key

Platforms like Twinity and ExitReality have been really showing us lately how a 3D space can be enhanced by enabling other people’s technologies and promoting other companies. With the massive number of virtual worlds out there these days, strategic partnerships are what makes or breaks a company, and we’re seeing some fantastic collaborations these days that truly enhance the user experience.

These two worlds are also forerunners of a sub-trend: web browsers in worlds, and worlds in web browsers. How important is that long-term? Jury’s still out; we may know by the end of 2009.