All you folks stuck with the Nexus 4, want some Android L action? Fortunately, the XDA Developers community is the best of the best. While Android L Developer Preview was officially released only for the Nexus 5 and Nexus 7 (2013), smart devs were able to port Android L to the older Nexus 4 successfully.
While everything seems to be working fine, the first boot still takes about 20-minutes, so don't fret if you see your phone stuck on the same screen for too long.
Here's a preview video of Android L running on the Nexus 4.