I too wonder why they need so many more staff members
After owning an imported iPhone for a couple of months now, I figured I might as well do the SIM Unlock business last weekend, seeing as it's officially coming to the UK this Friday.
Up until Saturday, I had just been using it as a glorified iPod Touch (albeit with email) with v1.0.2 firmware as I was still under contract with Three (who's SIM Cards are incompatible with 2G phones.)
The upgrade to v1.1.1 firmware and subsequent SIM Unlock was painless and I've been using it without any problems since then.
As a phone, it's effortlessly easy to use, in fact everything on it works in such a user-friendly way, I can't see any reason why O2 will need loads more staff on-hand, unless they're (a) expecting unprecedented sales and don't want a riot, (b) they're expecting issues with the new v.1.1.2 firmware which is coming on UK iPhones, (c) they have a very low impression of the intelligence of the typical UK iPhone buyer, or (d) they expect to have to fend off all the "Why can't I send a text to multiple recipients?" / "Why can't I send a picture message?" / "Why doesn't it take video?" / "Why isn't there Copy Paste functionality?" questions.
The questions I listed above are currently the only gripes I have with the iPhone, and I like to think I fit the "power user" category of phone users.
Anyway, the most important thing this week is to keep the damn thing out of site when I walk down the high street so I don't get mugged for it!