A senior electronics engineer where I used to work 'had to have' an iPhone, so one was duly supplied. He immediately had problems connecting reliably to Exchange to pick up his emails and after the IT support guys had tried several times to make it work more reliably, the phone was handed back with the (valid) comment that this was currently a 'known problem'.

The engineer's reply was that he didn't accept that response because it was an Apple product and they'd not have problems making something as simple as email 'just work'.