XPERIA X10 recently got upgraded to Android 2.1. The latest update didn’t bring multitouch features to X10 such as pinch to zoom in gallery, browser etc which most Android handsets support.
The Sony Ericsson official blog just posted that their hardware engineers have found a way to enable multi-touch in XPERIA X10. Sony Ericsson told this feature will be partially enabled first in Browser and Google Maps. The support is basically for gestures like pinch/zoom don’t expect multi touch gaming with buttons pressed simultaneously on different parts of the screen to work.
Here is the video demo of the XPERIA X10 featuring MultiTouch: