Normally, one small feature of a new version of Android wouldn’t deserve a post of its own, but this has been a huge issue that many people have had with AOSP for a long time. In fact, while there are other benefits to custom ROMs, the lack of a T9 dialler in AOSP builds is the single factor, for me, that necessitates the use of CyanogenMod (or equivalent).
The only Android phones that don’t ship with a T9 predictive dialler are Google’s Nexus devices. As custom and OEM ROMs have had this ability since the dawn of time, I honestly don’t know why it’s taken Google so long to implement the feature, but I was probably a little bit too excited when I found this out. Like zooming in Gmail was for a long time, T9 prediction is disabled by default in Android 4.3, so will require you to enable it in settings, but it will be so worthwhile.
Android 4.3 is expected to be revealed in the wee hours of tomorrow morning, along with the new Nexus 7