I got one of these a while back and for some reason was never able to get it working on my system. There are a lot of great hacks for them if you're a tinkerer though.

http://lifehacker.com/5637092/turn-a-pogoplug-into-a-fully+featured-linux-web-server

At this price, I ALMOST pulled the trigger... but then again I have BOX, GOOGLE DRIVE, DROPBOX and SKYDRIVE all working for me.

OK, OK, there's no monthly fees with the Pogo, but if your USB drive goes kaput there also goes all your data-- not so with these services.

The "cloud" killed the Pogo Plug, just like cheap android devices killed the Chumby.

If you sign up for J&R's free customer-loyalty program called "Friends with Benefits", you can get this (and everything else) shipped free. Sign up here: http://www.jr.com/checkout.flow?_flowId=loyalty-flow&program=BASIC and then log in here: https://www.jr.com/friends, then search for POGO-P21.

Looks like you'll have to copy/paste the sign-up URL, deals.woot seems to mangle it.

J&R's website says "Was:$104.99," but you can buy it direct from PogoPlug for $39.99 so that seems unlikely. It has actually been as low as $21.99 from J&R in recent months (for the hot pink version).

I bought a bunch of these about a month ago (fully intending to hack them and run Debian/ARM).
Be aware that the box might say that these are model P21s, but the actual units are E02s. Still a good price.

@kamikazeken: I have the Seagate FreeAgent Go (you can find it for a little over $20 on Amazon) that I got from Woot! a while back and I love it. It runs Pogoplug software, but I rarely need to use the Pogoplug service. I have two large external drives attached to it and it works pretty well as a file server on my home network. Cloud services are nice, but you run into upper limits pretty quick, and some data I'm just never putting into the clod, even though I might want to share it on my network.

@matthewjfazio:

Once you install Arch Linux on this puppy, this thing gives you so much that the cloud can't provide on your home network. And Arch Linux uses pacman to manage packages - which is very easy to use if you're a bit familiar with command-line linux.

Services running on my pogoplug:
FTP Server
SABNZB server (can upload and initialize NZBs from any computer using web interface)
SAMBA Server
SVN Server
Webmin (Mangement software with web interface, I use to schedule daily backups)
Web Server (w/ PHP and MySQL - and YES it runs fine for a low traffic website)
Print Server

I'm running a 1TB drive + 16GB flash drive for backups (I don't need to backup EVERYTHING...)

Plus any other service you can think of that runs on linux will probably be available for this.

archlinuxarm is a great way to learn some Linux.
A 5 watt pogo has completely replaced my server pc. It will pay for itself in less than a year with electricity savings.

The obvious flaw is not the device, it is the upload speed of most home internet. Sure you may have big fat 15mb pipe down but your up is .75mb to the internet. Inside the house it should be fine.