Just curious if anyone has actually bought this item and if so... whats your thoughts? Really just wanted it to load/offload comics, books and movies with the iPad 3.
I just got one yesterday, and so far it's worked great.
The main limitation is only apps that access a Webdav server, like Airstash+ and iFiles, or have a built in web browser, like azul, can access it. See
http://www.airstash.com/#apps. I've only used Airstash+, iFiles and Azul with it so far.
I got it for videos, and that is all I've tested so far. The main limitation here is you are still limited to iOS's video file types while streaming. Azul could play more types, like avi, but it could only download videos, not stream them. Hopefully future updates will allow this.
On my iPad3, I was able to stream a 1920X1080p video without any issues.
While using Airstash+, my 3rd gen iPad Touch was also able to stream the 1920X1080p video with some lag issues as the app was down-converting the video. So at least the limitation is only to the video type not the resolution.
Ultimately, it's only as good as the app you are using. Airstash+ works very well and is free, but has filetype limits. Also note that Airstash+ does have a "send to app" option.