Hands On - more
The number of supported services has been expanded to 16 from the 13 found in the Seagate rackmount review. Additions are Network Recycle Bin, WebDAV and SSH root access. As mentioned earlier, the new Sdrive remote access feature replaces Wuala Hybrid Cloud. The complete list can be found in the gallery.
Seagate still doesn't bundle any backup clients. But the expansion of backup options to include FTP, SMB shares and NFS mounts provide alternatives not found on many other products (NETGEAR being the most notable exception).
Seagate still has some work to do here, since my attempt to mount a Windows SMB share for backup failed. The NAS couldn't find the shared folder when I entered either a hostname or IP address. And the search function came up only with my Linksys E4200 router as a target...and it doesn't even have a disk attached!
Files can also be remotely accessed via the admin interface's file browser. But this method requires setting up dynamic DNS to reliably remotely access your NAS. Seagate provides two options, DynDNS and its own Seagate MyNAS service. It's basically a Seagate DDNS that gives your NAS a home on the internet in the form of http://mynas.seagate.com/YOURNAMEHERE.
Configuring Remote Access
Since the NAS-2 and -4 support HTTPS access, you can make this a secure connection. The downside is that MyNAS relies on your router supporting UPnP or you manually opening ports in your router firewall. And if you have double-NAT to deal with, this method won't work at all. I have a double-NAT configuration on my LAN, so Seagate MyNAS was a non-starter for me.
I also tried Sdrive, which replaces Wuala Hybrid Cloud. I was able to download both the Android app and Windows client from the "Click here" link shown in the above screenshot. But the Windows client also installs Java, which I didn't want to put on the particular system I downloaded it to.
I installed the Android app on a Google Nexus 7 and even created an account. But I could not find a way to register the NAS-4 to the Sdrive account. An email to Seagate wasn't answered by deadline. When I hear back, I'll give Sdrive a go again if I still have the products and update the review.
The current version of NAS OS 4 now supports installable apps. But the pickins are kinda slim as you can see below. I didn't test any of these. The App Manager also provides a manual install mode that lets you install downloaded apps or apps from sources other than Seagate.