How do you get touch count?

How do you get touch count? as in how many fingers are touching the screen during multitouch?

Thanks in Advance [import]uid: 8192 topic_id: 3401 reply_id: 303401[/import]

Anyone?
[import]uid: 8192 topic_id: 3401 reply_id: 10310[/import]

Ok. I am looking at the sample Code for multitouch Ipad. It doesn’t seem to work when I build it. Ansca, could you point me in the right direction?
I get the following error from the terminal

Runtime error
…Edition 2010.109/SampleCode/iPad/Multitouch/main.lua:65: attempt to get length of local ‘touches’ (a nil value)
stack traceback:
[C]: ?

Thanks [import]uid: 8192 topic_id: 3401 reply_id: 10343[/import]