In the first couple of quarters of this year, there was a huge fiasco about the multi-touch capabilities of the Sony Ericsson X10. At first, Sumit Malhotra from Sony Ericsson said that the X10 might get multi-touch support in a future software update but soon Rikard Skogberg said that the X10 lacks the hardware to support multi-touch.
Now, Sony Ericsson have announced in a blog post that the X10 will be getting an OTA (Over-The-Air) software update by Q1 of 2011 which will enable basic multi-touch (pinch-to-zoom) support on the phone.
The blog post clearly states that the X10 hardware is still not capable of multi-touch support. Some engineer( s) over at Sony Ericsson managed to change the driver and firmware so as to make the touch digitizer accept some basic multi-touch gestures.
However, the multi-touch gesture is still not perfect. A strange behavior is bound to happen when in a multi-touch gesture movement the two fingers cross each other or the X-axis and the Y-axis.
So, Sony Ericsson has decided to enable multi-touch gesture only in the web browser and Google Maps. Third party applications will also be able to make use of this limited multi-touch support on the X10.
It was only a few days ago that someone over at XDA forums had managed to enable basic multi-touch support on the X10. I think Sony Ericsson noticed this hack and are now going to use it to enable multi-touch on the X10.