Hiya,
 
Looks like Google's experimenting with 3.8 for Android: https://android.googlesource.com/kernel/common/+/experimental/android-3.8
Sounds great if this means they will utilize fq_codel, TFO, BQL, etc.
 
Anyway my nexus 7 says it has 3.1.10 and this 3.8 will probably go to Android 5.0 so I hope Nexus 7 will get it too some day or at least 3.3+
 
Phoronix coverage: http://www.phoronix.com/scan.php?page=news_item&px=MTMxMzc
Their 3.8 changelog: https://android.googlesource.com/kernel/common/+log/experimental/android-3.8
 
Regards,
Maciej