Minecraft's Adventure Mode is getting a flying cape

The cape is pretty cool, you can also change the color of it to make it more customized to you
by right clicking it with a banner. There also adding in bounce boxes on the players which is nice.
meaning.. no more walking THRU people. you'll actually PUSH them off ledges. 
which will make doing parkour on servers a bit more of a challenge :)
I like the way the make it glide a bit more though. So its not quite like flieing. 
Though, its not enough to make me want to give up playing with mods on the 1.7.10 version of minecraft and start running to play on 1.9 servers. 
What I really wish they would add in is.. some sort of grief protection. I mean COME ON!
it's been an issue since DAY 1 when playing with 'friends' on a server and they STILL haven't thought 
to add in some sort of land protection craftable block to the vanilla game? It would make running a server soo much LESS complex! I run a community for minecrafters and this as probably been the most HEATED conversation we've continued to have is about land protections.Its not too hard to fix either.

Just make a craftable block that would put someone in to adventure mode when in the radius except for the owner. .. kinda like 'protection stones' plugin. It would work just like that. 
only setup in vanilla minecraft.