I have to admit, I cringe a bit when I see all these websites tearing apart limited supply devices just to produce technology porn. I get that people want this information, but I'm sure the people who do either:
1) Are buying it right away regardless, and only want to brag about how their phone is better than your phone.
or:
2) Are going to wait for such information (as much information as possible), and thus won't be buying while supplies remain limited anyway.
In other words, teardowns can wait, and those devices could have gone to people who would actually use them, without impacting anyone who actually "needs" teardowns. Unfortunately, everyone is in such a rush to be first to press...
The most interesting article, of course, is from AnandTech, which managed to give a very large amount of information using various software tools, and good old fashioned research. No teardown necessary. I find the results quite promising, and the device easily meets my expectations. I'm looking forward to getting a 5s myself. As always, those not on the S-track may not be interested, but for a 4S user I see massive real-world speed improvements across the board without losing anything on battery.