Few things I've noticed :
1. I left the scratch resistant covers on for as long as possible, to avoid scratching the phone. They've now peeled off themselves.
2. The 5mp camera is superb.
3. The video playback from files I've transfered from my w900i are amazing. Full Landscape and no quality loss at all. It plays youtube clips I've saved for mobile brilliantly, where my W900i would suffer with colour loss and stutter slightly.
4. The touch sensitive pads under the screen are just that, ie quite sensitive and take a bit of getting accustomed to. But they're quite clever with it and remove a bit of the clutter from the look of the phone.
5. The buttons are quite fiddly and small, but again, you get use to them.
6. Camera is good in that its like a Cybershot. There's now an on/off button on the side of the phone to switch camera on/off, and a slider bar to select camera/video/playback of files.
7. There is no manual shutter for the lense. Its all automatic and takes place behind a glass protected screen. I dont know why SE have done this. The screen gets smudged easily from fingers, and will no doubt scratch too, making pictures blurry etc. The glass is very easily wiped clean, though, but it would have been nicer having a plastic shutter, even on top of the glass screen protecting the lense.
8. 512MB of memory comes with the phone on a MicroSD card. The phone itself has 32MB of memory. I've since ordered a 2GB Sony MicroSD card from Amazon for around £15 complete with adapter for the laptop, as I didnt get one with the phone.
9. It does everything and more my W900i did, only better. Its not as bulky and looks tidy too.
10. Its the best phone I've owned.