Product manager of Heroku Postgres here; if you specifically need this functionality around point in time restores you should reach out to us. Would love to hear more around the use cases behind it.
Thanks Craig. I might do that, but I think we're too small fish for any kind of a bespoke solution. Given that you guys came up with WAL-E, I was secretly hoping this was somehow baked-into some magical heroku interface already...
I didn't say I want it for free. I'm just not a big-enough customer with deep enough pockets to have some customized solution built especially for me by heroku.
It doesn't mean that other people like me wouldn't be interested in something like this if it existed.