You might have seen this new way of locking your mobile phones or tablet PCs.
I have it in my Acer Android Tablet too. Noticed today, that if you tilt your device for any light source, you will see the finger print traces of the pattern. This pattern is nothing but your unlock pattern.
Googled a bit on which method is more secured. Found this interesting link
Thing is that, if you are bit unlucky, your pattern could be compromised much easier than we think.
okie! I’m going back to number lock! 😛