Tigerface has posted a free version on AppExchange of their upcoming Datatable solution. The thing that really jumps out at me is that they’ve addressed the core limitation of the existing unpackaged datatable flow screen components: its inability to support more than a modest set of standard object types.
Tigerface appears to be solving this via metaprogramming: they actually generate the component on-demand to fit a particular specified object type. That’s a clever approach.
Comment thread here: https://success.salesforce.com/0D53A00004inprz