Windows 7 Multi Touch Gestures supports multiple One and Two finger actions these are pre-defined in the Platform and are On by default in Windows 7. So its not only about touching the screen but you need to choose the way in which a user touches the screen while interacting with your application. Check out below the Gestures supported in Windows 7 Multi Touch !
Few days back I bought HP TouchSmart tx2 series notebook to use with Windows 7 (Ultimate) and the main purpose to use it was to test out Windows 7 Multi Touch features. However after installing Windows 7, I was only able to get the support for single touch point or pen. So I checked out from the Device Manager it was showing some unknown devices which were not identified by the system etc etc.
So I was fumbling on many places then I finally came across HP TouchSmart tx2 N-trig DuoSense Multi-Touch Package 2.59 for Windows 7 RC on http://drivers.softpedia.com/get/MONITOR/OTHERS/HP-TouchSmart-tx2-N-trig-DuoSense-Multi-Touch-Package-259-for-Windows-7-RC.shtml.
I installed this and MultiTouch Support on my HP TouchSmart tx2 having Windows 7 RTM – Ultimate was enabled through this and further I was able to install Microsoft Touch Pack and started enjoying MultiTouch Apps.
The following hardware supports Windows 7 Multi Touch Features:
|Acer Aspire AS5738PG||Acer Aspire Z5610 – AIO|
|Asus Eee PC T91||Dell Studio One 19 – AIO|
|Dell Latitude XT2||Fujitsu DeskPower F Series – AIO|
|Fujitsu Lifebook T4310||HP TouchSmart 600t – AIO|
|Fujitsu Lifebook T4410||HP – TouchSmart dx9100 – AIO|
|HP TouchSmart TX2||Lenovo C310 – AIO|
|Lenovo ThinkPad X200||Medion X9613 – AIO|
|Lenovo IdeaPad S10-3t||Positivo Union Touch 2200 – AIO|
|Toshiba Satellite U505||Sony VAIO L – AIO|
This hardware is usually rare, especially in Emerging Markets and it take around 1.5 months in its shipment, so if you plan to use it for your Projects, plan ahead.