As near as I can tell, those specs tell me that the device _won't_ work on AT&T's 3G network.
T-Mobile uses 1700/2100 Mhz (paired together) for its 3G/WCDMA network.
AT&T uses 850/1900 Mhz (independently) for its 3G/WCDMA network.
I don't understand exactly how AT&T uses 850/1900 Mhz for both 2G/GSM and 3G/WCDMA.
Perhaps they use distinct subblocks of each band for 2G vs. 3G?
Indeed, iff the pad is both perfectly random and perfectly protected from exposure then one time pads are perfectly unbreakable.
Both of these issues are problems in reality though,
Firstly you need real randomness for your pad, PRNG output DOES NOT cut it. If you use a PRNG then you effectively have a stream cipher with a key consisting of knowlage of the prng and the seeding information fed to the prng.
Distribution is also a big problem since you need as much key as data you can't use one time pad encryption to distribute your new pads, so you need physically secure communications to transfer the pad.
The Secret Service actually came down and collected both the letter and the CD. They are taking this seriously.
Proving once again that debt institutions have a priority over everything else. Except maybe oil companies.
Rose (because I can easily believe that she's thick enough not to understand that a planet can orbit a black hole).
ISTR that she was the first one to exclaim that it was impossible (or at least, she realised at the same time as the Doctor), merely by looking at it.
That's the thing that's annoying - if the Doctor says it's impossible, I can believe it[*]. Perhaps it's to do with how it couldn't have formed, or perhaps the planet isn't actually orbiting, but is just stationary. But Rose? If she got it right, it was for completely the wrong reasons.
[*] Having said that, ISTR that the Doctor went through a phase in season 2-ish of saying "But that's impossible!" to almost every strange thing he came across, which sort of made the phrase lose its impact.
"Take that, you hostile sons-of-bitches!" -- James Coburn, in the finale of _The_President's_Analyst_