Very strange. Was it a test of BM1834 on the 1832 boards, or a preproduction prototype of the string design?
We have done a small batch of S3++ in the domestic market, which employee the string power design on the BM1382 chip.
( P.S. That was in a reply to you

)
Haha... So it was. I don't know how I missed that one.
The 0.588J/GH spec they're quoting on that auction seems very good though, it'd be interesting to see some pictures. I'm guessing 16 chips in a chain?