'Chat heads' feature missing from this developer build; full official app available for free on Friday
MoDaCo's Paul O'Brien has thrown together a trio of files with which you can get a half-working version of Facebook Home onto your phone -- five days before it'll be available to everyone as a free download.
We've played with it for a few minutes now, and it'll basically give you the look and feel of Facebook Home. But it doesn't quite match the performance (at least on our Nexus 4) that we saw on the HTC First, nor on the Galaxy Note 2 we used it on at Facebook's launch event lasts week. It's also lacking the "chat heads" messaging -- that's a huge part of Facebook Home. There's also no Google Search bar in the app drawer. That's consistent with the installed version of Facebook Home we used on a Galaxy Note 2 at Facebook HQ, but it's different than what you'll find on the HTC First. (Edit: Ah. There's a toggle for that in the settings, it seems.)
So, again, this is a dev version off a leaked ROM -- not the official release. If you're just dying to see what all the fuss is about (and, again, Facebook Home looks really nice), Paul's got full instructions at the link below.
Update: Looks like Facebook might have killed things on its end, as our Coverfeed has gone blank.