PS4 will support a huge variety of "indie" games like Big Fest, Rime, Hell Divers, Minecraft, War Thunder, and much much more. Along with all this , it is also confirmed most if not all PS4 games will work on PS Vita via remote play. All PS4 consoles will also come with "The Playroom" pre-installed from launch, which looked like a pretty cool app tbh. PS4 will also have Music Unlimited services, and its also getting a facelift as well for PS4. PS4 will also use Blockbuster™ as a partner to stream games to the system allowing users seem-less integration especially if you already have a BlockBuster account. Sony/Playstation is also teaming up with ISP's in Euro to bring better integration/experience, and finally, if you sign up for PS Plus early, you will get 90 days added onto the end of your PS Plus subscription for free.
€399 in Europe
$399 In America
£349 in UK
You Can ofcourse buy the PS4 in bundle form thru alot of different retailers like Amazon, Best Buy, Wal-Mart ect. Different retailers have different bundles as well, though most if not all are sold out right now. Your best bet is to do some checking around and find the deal YOU want.
PlayStation Group CEO and president Andrew House:
Source: Gamescom.eu.playstation.com - for the release date.