Sony Ericsson Xperia X10 to get multitouch support Q1 of 2011
As demonstrated in the video, the X10 will be getting multitouch support. However,the device will not support it throughout the entire UI due to issue with the device being able to track multiple points that cross each other. Also, the device will not be able to properly handle multiple virtual button presses.This would most likely affect games which make use of virtual buttons on the screen.
Pinch to zoom in applications such as the web browser and Google maps seem to be the focus of the multitouch update and will most likely function as expected.
A review of the Sony Ericsson X10a can be viewed here: Sony Ericsson X10a review
The original announcement about multitouch can be viewed here: Sony Ericsson Product blog