QNAP devices are awesome-sauce. I run a TS-639Pro at home myself and could seriously, not live without it. Once you experience the amazing things that a great NAS can do, you'll never go back.
QNAP has announced it will be rolling out it's v3.4 firmware starting January 14. The firmware fill be for Intel-based NAS devices only at first with the other NAS devices getting their v3.4 rollout on January 30.
The new features of this firmware include real-time remote replication, older firmwares supported data backup to remote storage, an offsite server or an attached disk, but it had to be done on a periodic basis. With the v3.4 firmware, remote replication can be enable to automatically happen as soon as the files are modified.
The other major feature included is MyCloudNAS. This service is able to turn the QNAP NAS into a personal cloud - allowing files to be accessed from anywhere in the world. MyCloudNAS allows an easy wizard setup that is designed to make it easy as pie to setup, then allowing access of your files from anywhere without having to open ports or any of that (to some users) confusing setup.
Other additions in v3.4 firmware are support for RAID 10, advanced folder permissions options and support for automated backups to cloud services like ElephantDrive and Amazon S3.