The problem with the pogoplug solutions ....
Is that you must access your pogo via their website.
Why is this necessary
Cloud Engines, the build-your-own-cloud-storage company, has unveiled a junior member of its Pogoplug device family: the Pogoplug Mobile. Cloud Engines Pogoplug Mobile mini Nas for phones The compact unit sports a single USB 2.0 port to which you can hook up external storage to share online. You don't even need a drive - the …
Except that SugarSync already provides all of this and it is free for upto 5GB. My photos etc are automatically uploaded from my phone and I can both access files and stream media from it. I suppose this has the advantage of not handing over your files to a third party - but that is only really an advantage to the law-breakers and/or paranoid.