Sam,
Perhaps not the usual poster to this forum, but am actually writing to you from Hong Kong.
My 11 year old daughter was diagnosed last year with Type 1, and used a pen for the first six months. In January, I took her to New York and got hooked up to the Omnipod. There is no infrastructure here in HK, so it is not possible to buy here, hence the trip. We are now nearly two months into podding and are absolutely delighted with the results.
Perhaps to address a couple of the issues raised in the comments here. My daughter is very slight, and much like any 11 year old girl, spends all her non-school time in shorts and singlets (we get some sun out here on this side of the world). As far as the pod being unsightly, it has never been an issue for her. She wears it on her tummy, upper arm or thigh, and while its visible if you really look for it, she's never had an issue with it.
With regards to it getting knocked off, my daughter plays footie, netball, hockey, goes surfing and is generally about as active as you can get - in the two months, we have had one occlusion caused by sports, although she wasn't aware of an actual knock when it happened.
We have generally found the thigh to be the least good of all the various sites, and about 95% of the very few issues that we have had have arisen then...
She loves the fact that its wireless, that she can bathe in it and that generally, its not a factor when she's hanging out with her mates....
We've had no issues with losing the pdm - in fact, as the BGL monitor is built in, her kit is now about half the size of what she used to have to carry with her everywhere... the other great thing that I have found is that if there is a problem, you simply replace the pod, which while costing say GBP20 is not cheap, its certainly not the end of the world. I bought a spare PDM when we were in NY in case anything went wrong, but it is still in the box, and will hopefully stay there...
While we have not tried other pumps, I can certainly say that we are absolutely thrilled with the omnipod so far and can't wait for the new version , the 'eros', to come out later this year...
Finally, on the relative cost of the thing, I can't really comment, as insurance in HK does not cover pumps, so the cost is ours regardless of whichever one we use...
feel free to email me if I can answer any other questions.
regards