I've used this phone for a few weeks now and boy is it better than the SDA II. If you're considering this phone, here are a few pointers (although I suspect a more comprehensive review can be found elsewhere on MoDaCo):
The TV works ok, I've only tested it in Zone 1 in London, but it works almost seamlessly even on the bus. I say almost because it does cut out once in a while, so perhaps not very useful to watch a thriller, but perfectly ok to watch a rerun of Friends. Having said that, alot, if not most of the interesting programming is actually blocked, so you get access to most of the homegrown stuff, but only a few bought shows.
Another thing I didn't know until I got the phone was that you have to use the headphones supplied if you want to watch TV. That's because they're special headphones that double as an antenna, and if you use other headphones (Sony, iPod etc) you will not get a useable reception.
I read a couple of reviews and didn't get why everybody kept complaining about the buttons, they seemed big and nice on the pictures. But what the pictures don't show you is that the buttons are very loose, i.e. it's difficult to push one button, and not move it around so much that is pushes the other buttons around it too.
Hope that helps.