I just figured since my Hero (rooted on original 1.5) could not take the OTA 1.5 MR from Sprint until I when back to stock RUU, it was safe. Figured that by being rooted in this fashion, it was impossible for Sprint to push over 'stock' 2.1, but we would still have the XDA-made 2.1 ROM? Are you saying that Sprint could have pushed the MR out onto the rooted Hero's? (am I making any sense?)
But that said, it looks like there is going to be another 2.1 release around the 1st, and they seem to have the htc sensors stable now, so just a few remaining issues.
Plus I was also assuming (and shouldt have) that JAG72's Hero was rooted.