Nothing at all.
It's the most powerful Sony Ericsson I've ever used.
It has GSM/UM TS support, which means it has loads of functions. It has a great processor, which results in very good speed. On my old SEs the games would run a bit slow. But in this it's fast. Everything is done within a second.
Oh yes, it's also loud and very clear.
A headset is not included in the package. Only 64MB card is included (should be more). If they included a headset, then it would be the best.
The screen is very bright and beautiful and the back-light is cool. It turns off and on in sequence (first the numerical pad, then the navigation keys).
I love every part of it, and yes it's very beautiful.
Same here, I got mine last December.
It's great; the size, the weight, the files it can recognize, it is a beauty with a beast inside.
I love SonyEricsson phones ever since; better than anything else out there in the market.