Yes, hopefully after a bit of exsposure these apps will be expanded upon. As is I'd rather just use my PC for them.

I have got an email but am not getting updated yet.

I got my update. Facebook and Twitter are a hassle if you don't have the chatpad, which means I'll mostly avoid them. However, having never used Last.fm before, I think it's fantastic. Definitely the part of the update that will be getting the most use for me.

I got the update but no email. So far I've listened used Last.FM the most, though it feels weird listening to Wind Waker music through an xbox.

Last.fm is fine, but I really wish they'd gone with Pandora. I thinks it's a superior service. But I can run Pandora in the PS3 browser so it's all good.

Last.FM on Xbox 360 is not available up here in the Great White North. The Facebook application is bare bones but i actually like the simplicity of it because i despise all of the extra crap applications. The twitter client is very very poor. any free Twitter Iphone app or Twitter client running on any other electronic device is superior to this piece of crap. (As a sidebar...great...Facebook just hard locked my 360 as i am typing this)
The biggest flaw is that the Twitter app has to be run as a stand alone program. It cannot run in the background on the 360. You cannot send or receive tweets if you are not running the Twitter program. This thing should be constantly running in the background and updating you (user preference of course) on the fly no matter if you are playing a game, using ANY of the dashboard functions or watching a Blu-Ra.....never mind i meant DVD or HD-DVD(epic fail) movie.

The fact that it does not run in the background is IMO a deal breaking flaw. Not to mention the fact that my options are limited to "reply" "retweet" "<user> profile" and "favorite this tweet" I haven't been able to figure out how to direct message someone and clicking on links is of course impossible. Hell at least my 5 year old cell phone can save macros so i can at least send direct tweets to people. You can of course update your status and search the tweets and also browse trending topics but the major limitations far outweigh the positives. This update just makes the "NXE" even more cluttered than it already is. I encourage all present and future interface design artists to study the NXE as a prime example of what NOT to do.

Sorry everyone but this really is a half-assed update. sure it adds facebook, twitter and zune but it does everything so poorly that you can get more functionality from a cell phone.