The same CSV download feature for ad_table would also be nice. (Despite the fact that ad_table is old and ugly and doesn't play nicely with the Templating system, it is often still useful...)
Collaboraid's spec. for their new List Builder specifically (which should make ad_table completely obsolete) lists CSV download as a feature, and List Builder is listed as "Currently being implemented". What's the status of List Builder? How far along is it, any idea when it'll be working well enough to use for table, when CSV download will be ready, etc.?