Will AT&T's 4g work on the n900? or will it need an update?

What AT&T 4G? They are just starting their 3G improvements. Given that the n900 has no 4G radios, nor works on AT&T's "3G", its doubtful.

N900 3G: 900/1700/2100
AT&T 3G: 850/1900
T-Mobile 3G: 1700/2100
AT&T LTE (Sprint's WiMax is 4G. AT&T and Verizon do not have true 4G): 700MHz and have ~0% coverage.

Frequency isn't everything either, just the initial requirement. You still need the towers, the cellular stack compatible (it will not be compatible with GSM) and perhaps the carrier stack (else they may chose to block you)

Due note that you CAN use the N900 on AT&T's "EDGE" 2.5G which is probably what you'd be on most of the time anyway (their 3G coverage is literally getting worse over time)

EDIT: That was their first post. I apologize. (I assumed they created a new account...)

I'm not trolling, i just really dont know very much about phones or anything that has to do with them

If it's literally getting worse over time do you know why? I would love to know what's going on at/with AT&T that's causing this? Are towers just failing due to maintenance or something? Are they taking them down? Or are there other problems that cause it?

As for the trolling comment, the op already answered, but I just wanted to say I didn't think so: It seems more like a genuine inquiry from someone who doesn't know much about the physical workings of phones. I would've asked the same question at best a couple years ago. (I probably did, I just am the kind of person who would've entered "3G" into Google and learned that way. While I encourage that habit, I don't really blame people because most societies nowadays don't actively encourage self-driven learning or have it be a norm that parents try to instill it in their children. Plus, for some people that might just not occur naturally, because they just never do stuff like that.)

You're kidding right?? When did AT$T get a 4G network??

scribbles, they must be working on one, or iPhone wouldn't be coming with 4G as one of its selling points yet locked to AT&T again (at least I THINK I read that somewhere. Hoping I didn't misunderstand so I don't look like a ******).

Doubt it's available in that many areas. I mean, last I checked Sprint's 4G covered like 3 states, so I wouldn't say it's fair for them to say they already "have" a 4G network (without elaboration that they are still building most of it) either.

- EDIT -

Really, me calling myself a mentally challenged person gets censored but I've seen "suck my dick" get used without censorship? Political correctness is an insult to human intelligence.

thats why i asked the question in the first place... and to ur edit,
"two things in the universe are infinite, space and human stupidity, and im not sure about the space part"
-Einstein

iPhone 4 = 4th gen of iPhone, not 4G network capable.

the iphone 4 is the fourth generation iphone.
it will not have "4th Generation" network capability.

For instance this is a ipod nano 4G. It did not contain a 4G cellular modem (or else I wouldn't have been so quick to sell it)

no 4G source (+ common sense): http://www.product-reviews.net/2010/...why-no-4g-lte/

As far as AT&T's shrinking overage. I have AT&T (and one of their dumbphone "messenging" phones; supports 3G w/ HDSPA). And let me put it this way, I used to be able to make phone calls on it at home (with 4/5 "bars" of 3G). Then suddenly not able to (0 bars). Same goes for other places I frequent.