I think "effectively" is really dependent on the end user. If the goal is to provide an easy and cheap system for school children to work with, much like the OL

I think "effectively" is really dependent on the end user. If the goal is to provide an easy and cheap system for school children to work with, much like the OLPC, then internet may not be something that is available or required for the target demographic. In the case of your standard hacker, it would obviously be awesome to have all the additional items on-board, but with the ease of adding a USB hub and all required additions to it you can expand on it as much as you want in what ever cost range you can afford.