If would like to test your Android device or compare its performance with other devices, there are some useful apps in the Android market to get hold of:
And if you want to know, if your Nexus includes a working multitouch functionality, just download this little app.
Point you Android browser to the link above and try to wipe around with two fingers. If the colored cycles will follow your fingers, everything is fine. If not, it isn’t, but don’t be scared too much.
Mine isn’t working either, but when do you really need this?