Multi-Touch devices are getting more and more common these days but they come with a catch, it must be capacitive meaning no stylus support.

Stantum's technology has made it possible to have Multi-touch on resistive devices, meaning added stylus support for accuracy.

Stantum's technology is a software-based refinement to resistive touchscreens that allows for accuracy beyond the pixel density of the display, a complete lack of touchscreen "jitters" and some fairly incredible input methods. Termed "TouchPark," the multitouch framework provides gesture recognition, cursor management and physics processing for phone builders to stick on top of the phone OS (Symbian, Windows Mobile and Android are currently supported), and works with hardware such as Texas Instruments Zoom, Freescale i.MX and ST Nomadic.

This is a hardware implementation and it will not be possible to run it on existing resitive devices but there is an software implementation but it is still in it early stages and doesn't look promising.

Here are some videos: