That may be a point that didn't come across right : the "server" I'd like to make out of this neat piece of hardware isn't going to be public, it's just my own private little server for my own little personnal use. I don't plan on hosting big websites (maybe just my blog, which gets maybe around a 100 view per week, max), have a public svn for hundreds of people to work on or that kind of thing.
@zurk : about the plastic casing, well, let's be honest, if I'm buying this thing, it's to get my saw and hammer busy
jronald confirmed (in the "teardown" topic) that the base is mostly full of air, and the PCB being smaller than the screen, might be folded behind it (not 100% sure about the ribbon connector). And I don't see why having it on my local wifi is "unreliable", I've been using an old laptop as my svn/local server (with my router redirecting some ports for SSL and FTP from the outside) for months now, no problem so far.
@duane : well, that's exactly what I was thinking, plus it would just be a local SVN for my personnal use, to have a backup of my coding works, I don't want/need it to be publicly accessible. I'm pretty sure the BB8 would be enough (and that I'm gonna buy it as soon as I get enough money), but I'd just like to have confirmation from someone who maybe has done something similar.
Maybe a dumb idea, but if someone could make some kind of "benchmark" that could be compared to other platforms (old Pentium 2 computers, plug computers running linux, etc...) that would be great.
(Big) Sidenote : Here in France, we had a little piece of technology called the Minitel. It was released in 1982, and you could use it for a lot of stuff like chatting with people (obviously for s*x), ordering train tickets or searching phone numbers, all of that before the great Internet was massively available. If you need more infos on that, check http://en.wikipedia.org/wiki/Minitel
The problem with the Minitel is that it was a centralized server architecture : you had to "dial-in" a server to get or put what you want. However, at least in my conception, the main philosophy behind Internet / OpenSource (especially Linux) was the decentralized server : if you kill one server, you can still find the information elsewhere because it has been copied numerous time (or not, but in this case, it's because it wasn't interesting). As Linus Torvald said, "Only wimps use tape backup: real men just upload their important stuff on ftp, and let the rest of the world mirror it
".
Unfortunately, nowadays, Internet is becoming more and more like the Minitel : if you want to see/share videos, you go to youtube ; you want to read news, go to Google News (or other), ... While I can understand (and fully agree) with the ease of use of this kind of model, I think that it's not natural for me to upload my family pictures on flickr or facebook : those servers are not mine, it's like posting those photos in the street and telling my mother "go to this adress and look on the wall to see your granddaughter". It's even more understandable with emails : why should I have my address @ yahoo or gmail (even though I currently do, but plan on changing very soon) when with the good old snail mail, it's delivered in the mailbox I built myself out of scrap wood ? It's like having your telephone bill posted at google's headquarter, letting them (or anyone else) read through it if they want and then having to go there to get it.
I'd like to change that, but I also don't want to have a full fledged server (even though an old one, or a tiny one, too much power consumption, etc...), because I'm pretty sure the simple services I use daily can run on a much smaller, cheaper and convenient platform like the Infocast or a plugcomputer running 24/7. Like Duane said, there was Internet when servers where less powerful than a Chumby 
Sorry for the long post, but maybe you'll better understand my "philosophy" behind this project. If you understand French (spoken), you should watch the talk by Benjamin Bayart, "Minitel 2.0" http://www.dailymotion.com/video/x3opqf … tel-2_tech