Nokia 3310
When they showed Rosie's Nokia 3310 the first time, I was like "OK, it's 2002 or something", but even for 2002 England, this was a cheap phone.
I burst into laughter when we were shown that she still uses that same phone in 2009/2010. By that time I think all European providers were handing you a free, cheap or not, SMARTphone with your plan. Did they try to hint us something? Something like: He (Alex) is living the American dream, and she is stuck in poor old England, since Alex was clearly using a smartphone in 2002 and had that american lifestyle he thought she envies him for? Either way, it seemed very improbable.