The text was also changed just a minute ago to remove a plug for HyperCube. The original text included something along the lines of "Clearly there are big problems with Android, which is why we started HyperCube..."
As an aside, I'm so glad to have stock Android - I really don't miss the days of all the vendor and network 'extras'.
(TLDR: just remove your SIM card when screen is off to unlock, works on Anrdoid 4.0.3 with Acer Iconia Tab A511)
Edit: I wonder if someone with tablet could try to reproduce that?
It'd be interesting to know if this is just something that HTC has already fixed, or if it is somehow related to a carrier-specific modification.
And since even the pin lock was trivial to bypass by law enforcement or professional criminals (you could buy special devices to unlock the phones), I don't expect that my phone has any really serious protection. I know iOS devices are harder, but I'd expect the police or serious criminals to be able to crack my Android phone in seconds. Which is ok, as long as I'm aware of it. Of course, if my phones lock does turn out to be safe, thats great.
http://www.reddit.com/r/Android/comments/1og2h8/critical_and...