Xcelsius 2008 & Windows 7


I was wondering if anyone could shed some light on when Windows 7 will be a supported operating system for Xcelsius 2008? My understanding is that it will be supported at some point in time. I have potential clients that won't purchase the software unless it is supported or there is a defined time frame. I believe they are worried that a new edition will come out right after they just spent the money on the old one. Any insight would be appreciated.