I am in Same problem , I am trying to run Android apps on Meego.
As I just started I want to know which Approach will be better
Porting DVM + android Native libs - my point of view this is good solution in long run but definitely require huge work at each level of android as well meego side.

Android as usr-mode kernel + Chrooted OS - good starting point to arrive some conclusion. but android expects multiple user while Linux expect sing user. Every android app installed has new UID handling this will be tricky.
Canaonical trying to do this -https://wiki.ubuntu.com/Specs/AndroidExecutionEnvironment


I will keep updated. any suggestions help are always welcome.