Well there is at least improvements in Meego vs Maemo; that rpm-system with GPG-signatures embedded. You just need to do Google search to see how vulnerable maemo software packaging system is in practise.

Also of course there is a benefit that an another large player (Intel) is supporting the system (MeeGo vs Maemo).

Android's Dalvik has some good points (JIT-language) in computer science wise compared to old fashioned c/c++-only paradigm.

However, what is not so good about Android is that is forking Linux development to unstandardized path and taking away freedom.

Meego is the only OS currently cabable to get all that if developed wisely. There is no theoretical restriction to port Apple applications to Meego and run Dalvik/Java SE/Java ME -applications in Meego under ported virtual machines (VMs.)