Don't Use /summon For Blocks!

Build, build, build!

   Hello Minecrafts!  I don't know about you, but the features that are being worked on in 1.7 have got me quite excited.  The biomes themselves are beautiful.  The update to fishing is making it worthwhile to actually fish, and all the new command block commands!  In snapshot 36a/b, people were using /summon to create blocks where they wanted.  Well, Jeb put a stop to that quite quickly, more or less.  He did so by giving a new command, /setblock!  Using this command can now easily blocks wherever you want!

   Think of using this in parkour games with blocks that disappear and re-appear.  Maybe make a drawbridge that can appear and disappear with a flip of switch!  Make a crazy cool hidden door that opens and removes a whole wall section!  So many possibilities with such a command!  Below is an excerpt from Jeb.

• x y z are coordinates, can be relative using tilde, as usual
• block is the block id (ofcourse), which in the future will be mod-safe (for example, instead of having the value 1, you can have "minecraft:stone")
• data is the block data, 0-15 as normal
• method is special and can have three values: replace, keep, destroy. "replace" will simply replace the current block, and throw an error message if nothing happened (occurs when the new block/data is identical to the old one). "keep" will only place the new block if the target space is empty, and "destroy" will first destroy the target block (and spawn resources) before placing the new block.
• dataTag is the NBT tag were you put information for tile entities such as chests. For example, "{Items:[{id:"minecraft:potato",Count:2}]}", and so on.