Oh, I feel a bit silly now! I'd seen a couple of attempts to combine the two, but didn't realise this one was official. It looks great. I have an analysis coming up that borders between dplyr and data.table in terms of size, so will check it out then!

There is also the tidytable package. But dtplyr works really well. Have used it in a couple of shiny apps that wrangle some heavy input files.