If you mean adding multiple files as the destination for the Backup - then yes the above is true, and you may even be able to experiment with reducing the number of files - checking the difference is speed etc.

Another factor to consider is multiple processors and multiple disks and the I/O performance improvements this may bring

As far as I have seen the functionality with backups has not undergone any other major changes and functionality on the whole is the same as was for SQL 2005

(I will confirm that this is still available under the compression setting and let you know)

Thanks

Kevin