Minecraft is at 1.7
/Haven't visited your Minecraft world lately? Got bored making random things? No reason to boot up your world? Well now you do. Team Mojang has now updated Minecraft to 1.7 and now we have pistons!
Pistons may not sound like much to you at a glance, especially with how simple it looks but people have already done some incredibly creative things with it. My favorite is the transforming entrance.
[youtube http://www.youtube.com/watch?v=uZJr86d2IUo&w=560&h=349]
[youtube http://www.youtube.com/watch?v=uo4UFb2YKI0&w=560&h=349]