We’ll cover the features in detail with the general availability release of RTVS 1.0, but in summary the new features include:
Remote Execution: type R code in your local RTVS instance, but have the computations performed on a remote R server. You can also switch between local and remote workspaces at will.
SQL Server Integration: work with database connections and SQL queries, and create stored procedures with embedded R code.
Enhanced R Graphics Support: multiple floating and dockable plot windows, each with plot history.
I’ve been using RTVS more frequently lately and it’s definitely growing on me.