i just had a look at their homepage (in slick 3D). My initial reaction was--ok these guy are attempting what Linden Lab was trying to do with Second Life-in-the-enterprise (a project that LL eliminated about two years ago, but which showed promise for a while as evidenced by IBM's sponsorship); in other words, a virtual workplace rather video-conferencing (eg., gotomeeting.com). But then reading the typically perceptive and relentlessly skeptical comments from the HN community pretty quickly convinced me that my interpretation was a little over-extended to say the least, but as a former Linden, probably inevitable.