The second ruling is a bit more involved, but basically says if you are a business you can purchase/speculate/use bitcoin as part of your business as long as the purchase/speculation is not your business.
No, that's not how I interpret that. The purchase/speculation can be your business, however it can only be your business, ie, it can't involve speculation/purchase on behalf of clients.
This is VERY positive overall, I believe. So far there doesn't seem to be momentum toward a fight/standoff between govt and virtual currency users. Maybe the U.S. is not quite as bad as Russia yet?
Nice job FinCEN.