tekgoblin writes: "We may be in for a treat at the Apple iPhone announcement on October 4th. China Unicom vice president Huan Wenliang announced at MacWorld Asia that both T-Mobile and AT&T would offer the iPhone 5 with HSPA+ 4G capability." Link to Original Source
Computers are unreliable, but humans are even more unreliable.
Any system which depends on human reliability is unreliable.