FathomDB and SQL Azure are heading into that direction but both are still in their infancy, i.e. don't even support replication.
But at least there's hope that these will offer a solution in the not-too-distant future.
We at FathomDB do support replication - you can set it up yourself - we just can't yet set it up for you or monitor it. But - as you say - we're working on it.
