I think the camera need direct access to the hardware for this to work fast enough. Android camera api isn't really fast enough. This will come with L were all third party will have the access that the oem has created for them self today.
http://www.anandtech.com/show/8274/u...ds-camera-hal3
Just give me a Nexus/Silver with a great camera/app...

Smart(er) phones:
iPhone 3, N1, Optimus 2X, Xperia Arc, iPhone 4, Xperia S, Motorola Razr, Galaxy Note, One X, Samsung Galaxy S3, Sony Xperia V, Padfone 2 + "New", Note 2, iPhone 5, HTC One S, S4, Xperia ZR, LG G2, N5, Z1c, HTC M7 & M8, S5, G3, etc...

Pads:
iPad, Asus T1+T2+Prime, Galaxy Tab 8,9. iPad2, Nexus 7, Padfone 2, iPad4. PadFone 4, New PadFone

If I helped you hit "thanks"