Boxee is easy to use, mainly you need only six buttons on a remote to control it (the navigational keys, select and back). Sometimes you need to enter some text, maybe for a search box or to use the new feature of adding a comment to an item you liked. This can be time consuming with a normal remote, so the ideal device would have a little keyboard like the Boxee remote or the Logitech diNovo Mini ™ (which does seem a little expensive). The Nokia N900 has a nice backlit hardware keyboard though and a touch screen. One possible snag you might think is the lack of a “app” to control Boxee (such as the ones available for Android and iPhone), but “if you can't do something do something else” (according to a saying I may have made up). Fortunately it is possible to control Boxee through a browser, and this approach might work for other mobile devices too.
Netbooks are very useful devices, not just for web surfing and looking at your email for for all sorts of different purposes, some more obvious than others. These devices are all about mobility, but while you are out and about there could be situations where setting up a wireless network to connect a group of machines might be handy and of course Internet access makes this even more useful. Maybe you have a device you would like to use with the Internet while you are away, but it only has WiFi connection (e.g. some portable media players like the iPod Touch) and you cannot plug your 3G mobile broadband modem into it. As long as you have 3G coverage you can have a WiFi hotspot wherever you go, and you don't need to bring a dedicated router as a netbook powered by Ubuntu (or Easy Peasy) can easily fulfill this function.