Pokémon Omega Ruby and Pokémon Alpha Sapphire announced

 Demo got decrypted, view at your own risk.

It appears the demo is a stripped-down version of the game from a programming perspective rather than its own thing. The regular Pokemon models were ripped out of the demo along with descriptions for several new moves, but some scraps of data were still left in. As such, Mega Hoopa’s full-blown model isn’t actually in the demo’s coding – the model you see is a resized version that will be used for something else in the game.

 Shiny megas/primals, Stats on megas/primals, Locations + Move Tutors

Index: 799 - Swampert-M Stats: 100/150/110/95/110/70 Type: Water/Ground Catchrate: 45 Stage: 3
Index: 800 - Sceptile-M Stats: 70/110/75/145/85/145 Type: Grass/Dragon Catchrate: 45 Stage: 3
Index: 801 - Sableye-M Stats: 50/85/125/85/115/20 Type: Dark/Ghost Catchrate: 45 Stage: 2
Index: 802 - Altaria-M Stats: 75/110/110/110/105/80 Type: Dragon/Fairy Catchrate: 45 Stage: 2
Index: 803 - Gallade-M Stats: 68/165/95/65/115/110 Type: Psychic/Fighting Catchrate: 45 Stage: 3
Index: 804 - Audino-M Stats: 103/60/126/80/126/50 Type: Normal/Fairy Catchrate: 255 Stage: 2
Index: 805 - Sharpedo-M Stats: 70/140/70/110/65/105 Type: Water/Dark Catchrate: 60 Stage: 2
Index: 806 - Slowbro-M Stats: 95/75/180/130/80/30 Type: Water/Psychic Catchrate: 75 Stage: 2
Index: 807 - Steelix-M Stats: 75/125/230/55/95/30 Type: Steel/Ground Catchrate: 25 Stage: 2
Index: 808 - Pidgeot-M Stats: 83/80/80/135/80/121 Type: Normal/Flying Catchrate: 45 Stage: 3
Index: 809 - Glalie-M Stats: 80/120/80/120/80/100 Type: Ice/Ice Catchrate: 75 Stage: 2
Index: 810 - Diancie-M Stats: 50/160/110/160/110/110 Type: Rock/Fairy Catchrate: 3 Stage: 3
Index: 811 - Metagross-M Stats: 80/145/150/105/110/110 Type: Steel/Psychic Catchrate: 3 Stage: 3
Index: 812 - Kyogre-P Stats: 100/150/90/180/160/90 Type: Water/Water Catchrate: 3 Stage: 3
Index: 813 - Groudon-P Stats: 100/180/160/150/90/90 Type: Ground/Fire Catchrate: 3 Stage: 3
Index: 814 - Rayquaza-M Stats: 105/180/100/180/100/115 Type: Dragon/Flying Catchrate: 45 Stage: 3
815-820 are Cosplay Pikachu forms
Index: 821 - Hoopa-M Stats: 80/160/60/170/130/80 Type: Psychic/Dark Catchrate: 3 Stage: 3
Index: 822 - Camerupt-M Stats: 70/120/100/145/105/20 Type: Fire/Ground Catchrate: 150 Stage: 2
Index: 823 - Lopunny-M Stats: 65/136/94/54/96/135 Type: Normal/Fighting Catchrate: 60 Stage: 2
Index: 824 - Salamence-M Stats: 95/145/130/120/90/120 Type: Dragon/Flying Catchrate: 45 Stage: 3
Index: 825 - Beedrill-M Stats: 65/150/40/15/80/145 Type: Bug/Poison Catchrate: 45 Stage: 3

 Mega Hoopa

Something interesting, there's a place called Battle Resort in the data. There's a bunch more stuff too that I'm currently looking through.
Level up moves for every pokemon
Egg Moves

All of the Gym Leaders and E4 from the original games are making a return.

 List of Locations

Littleroot Town
Oldale Town
Dewford Town
Lavaridge Town
Fallarbor Town
Verdanturf Town
Pacifidlog Town
Petalburg City
Slateport City
Mauville City
Rustboro City
Fortree City
Lilycove City
Mossdeep City
Sootopolis City
Ever Grande City
Pokémon League
Route 101
Route 102
Route 103
Route 104
Route 105
Route 106
Route 107
Route 108
Route 109
Route 110
Route 111
Route 112
Route 113
Route 114
Route 115
Route 116
Route 117
Route 118
Route 119
Route 120
Route 121
Route 122
Route 123
Route 124
Route 125
Route 126
Route 127
Route 128
Route 129
Route 130
Route 131
Route 132
Route 133
Route 134
Meteor Falls
Rusturf Tunnel
???
Desert Ruins
Granite Cave
Petalburg Woods
Mt. Chimney
Jagged Pass
Fiery Path
Mt. Pyre
Team Aqua Hideout
Seafloor Cavern
Cave of Origin
Victory Road
Shoal Cave
New Mauville
Sea Mauville
Island Cave
Ancient Tomb
Sealed Chamber
Scorched Slab
Team Magma Hideout
Sky Pillar
Battle Resort
Southern Island
S.S. Tidal
Safari Zone
A Faraway Place
A Faraway Place
A Faraway Place
A Faraway Place
Trackless Forest
Pathless Plain
Nameless Cavern
Fabled Cave
Gnarled Den
Crescent Isle
Secret Islet
Soaring in the sky
Secret Shore
Secret Meadow
Secret Base

 Move Tutor Stuff

There will be 63 move tutor moves in ORAS.

TutorSource1:

#1 is Bug Bite
#2 is Covet
#3 is Super Fang
#4 is Dual Chop
#5 is Signal Beam
#6 is Iron Head
#7 is Seed Bomb
#8 is Drill Run
#9 is Bounce
#10 is Low Kick
#11 is Gunk Shot. Frogadier, Greninja, Bunnelby, Diggersby, Pancham, Pangoro, Skrelp, Dragalge and Hoopa get it.
#12 is Uproar
#13 is Thunder Punch. Chespin, Quilladin, Chesnaught, Pancham, Pangoro, Heliolisk, Hawlucha, Dedenne, Goodra and Diggersby get it
#14 is Fire Punch. Delphox, Braixen, Pancham, Pangoro, Heliolisk, Hawlucha, Goodra and Diggersby get it
#15 is Ice Punch. Frogadier, Greninja, Pancham, Pangoro and Diggersby get it.

TutorSource2:

#1 is Magic Coat
#2 is Block
#3 is Earth Power
#4 is Foul Play
#5 is Gravity
#6 is Magnet Rise
#7 is Iron Defense
#8 is Last Resort
#9 is Superpower
#10 is Electroweb
#11 is Icy Wind
#12 is Aqua Tail
#13 is Dark Pulse
#14 is Zen Headbutt
#15 is Dragon Pulse
#16 is Hyper Voice. Heliolisk and Aurorus get it.
#17 is Iron Tail

TutorSource3:

#1 is Bind
#2 is Snore
#3 is Knock Off. Pancham, Pangoro, Diggersby, Malamar, Yveltal and Hoopa get it.
#4 is Synthesis
#5 is Heat Wave. Fletchling, Fletchinder, Talonflame, Noibat, Noivern, and Yveltal get it.
#6 is Role Play
#7 is Heal Bell
#8 is Tailwind
#9 is Sky Attack
#10 is Pain Split
#11 is Giga Drain
#12 is Drain Punch. Pangoro, Chesnaught, Slurpuff, Hawlucha, Trevenant, and Hoopa get it.
#13 is Air Cutter
#14 is Focus Punch
#15 is Shock Wave
#16 is Water Pulse

TutorSource 4:

#1 is Gastro Acid
#2 is Worry Seed
#3 is Spite
#4 is After You
#5 is Helping Hand
#6 is Trick
#7 is Magic Room
#8 is Wonder Room
#9 is Endeavor
#10 is Outrage
#11 is Recycle
#12 is Snatch
#13 is Stealth Rock. Barbaracle, Tyrantrum, Aurorus, Carbink, and Diancie get it.
#14 is Endure?
#15 is Skill Swap

Full list for each Pokémon

This is the demo, so I'm sure there's a lot still to be revealed once the games come out.