AppleTv is awesome.. Oce jail broken, being the caveat of course.

Xmbc - wow...
Navi-X - cartoons and more!
Ice films - does not work for me for x reasons, the links don't show up
Pogo plug - once jail broken of course,

Pogo plug - in case people does not know, it is a little arm based box that I got from USA for usd99. Once jailbroken, (even without, it's also quite usable), installed Samba as well as some other stuffs, then if becomes a low power (very important to me) streaming, downloading box and 24/7...

It's a file-server-personal cloud