[Luke Hutchison] has come up with a rather clever hack to get multitouch support on the G1. He wrote a patch against the Synaptics touchscreen driver. When two fingers are placed, the driver reports the x/y of the midpoint and a radius for the size field. If only one finger is used, the size is reported as zero. The nice thing about this approach is that it’s backwards compatible; the extra data will be ignored by current apps. Unfortunately, Google’s Android team says that if multitouch is ever added, it would identify individual fingers and definitely not using this method.
[RyeBrye] has been trying to get multitouch working on the Android based T-Mobile G1. He hacked the Synaptics touchscreen driver so that it would dump raw event info to a character device. The demo above is using example code from Google for a fingerpaint program. Polling the device is not the fastest method, but [RyeBrye] just wanted to get a demo out there to prove it could be done.
If you’ve been holding off on a T-Mobile G1 purchase because you didn’t like the apparent user restrictions, there’s some good news. The Android powered phone comes with an easy button for getting root. Install a terminal app and you can manually start the telnetd service. All that’s left is telenetting into the device and it’ll give you root level access.
The iphone-dev team published a video today showing access to the iPhone’s baseband processor. They connect to the device over ssh and then use minicom to issue AT commands. They’re writing custom AT commands for full control.