Confused with the convoluted headline?, well there is a reason for that. it is just not me dropping keywords or something.
Wixi is a Webtop also called WebOS, but it should be called only a webtop since it only offers storage and social file sharing. they also offer a widget and Wixi is also one of those rare cases where the widget offered is exactly the same offered as in the service site.
It offers you a flash player for your files, it don`t matters if you want to share music, pictures or videos. it will serve you the files in a YouTube like player.
That also means that given the form factor of the widget, you can put it anywhere you want. the main difference from other similar file players is that it comes from not only a storage service but from a webtop service and that the widget can easily transition to full screen retaining its controls.
The service is now open to everyone so you can try it out and see if it convinces you..