Well, we still havn't got the update yet. A privileged few have, so here's a sneak peek into what we are going to get. Unknown13x at xda developers has posted his preview
here. it's in Thai, so let me put it in plain english for you all :)
First up, the lockscreen. As you can see, it has now changed to a simple slide to unlock design. Slide it to the right to unlock, slide it to the left to change to silent. This is the same for both the X10 and the minis.
The next change is that you now have 5 homescreens in place of 3.
If we tap the little button below the screen and hold down,the small Preview window will show up so we can choose wherever we want to navigate from the last 5 opened screens.
Timescape is now a lot more faster and the scrolling is very smooth. A new and handy addition is auto scrolling of text in the splines so that you can read the full message then and there without clicking it to go to the full application. Another new feature is the ability to change the background in Timescape.
Messaging app is a lot more fluid and the chat style look is pretty neat! The new improved keyboard is worth mention. It even suggests apt corrections to any misspelled words. Nifty addition Sony Ericsson!
Social Phonebook has been implemented and hence now the phonebook is integrated with popular networking tools like facebook and twitter. You can see your contact's latest tweets or facebook right in the Phonebook itself. It automatically downloads the contact's image from facebook, which can also be set manually.
The call screen has also been updated and now features some of the regular options right at the bottom of the screen for quick access.
The voice search function has also been added, it only supports english though. The voice dialer is also present so you can just speak the name of the person and the device will make the call for you.
And here's a video demoing Eclair on X10:
