Hi,
I was on the original beta for it (am I allowed to say that??!), and at the time, I didn't know a single person that could run the software. It required a lot of memory back then and a hefty CPU!
I only ever received these two CDs, and then after that it all stopped, and I didn't hear another thing. One in May 98 called "Chrome - May 98/Beta 2", and then another in July 98 which to all intents and purposes seems to be the final release - "Chromeffects for Windows 98 - Software Development Kit July 1998 Version 1.0"
I think MS were trying to be too futuristic and the world wasn't ready for it!

Like you say, it would be interesting to know whatever happened to it.
Regards,
Chris