Is it still in its early stage, so maybe we can affect what it is going to be. If it would be language agnostic, so having all HTML5, Android/Java, Qt/Python and QML/Qt/C++ possible and supported in the application stores and repositories; many would be happy.

And I hope it will have RPM and not deb, because RPM has transaction- and differential delta package-support, which deb lags, and those could be very good for mobile device with a battery and somewhat restricted and often rate charged net access.
Also because RPM allows to install packages with wget/ftp/httpget safely with its embedded GPG-signatures, which deb-systems are not used to, deb-packages are unsigned most always. Having RPM-system by default, also enables developers to sign their own packages and be in charge, and not just the repository maintainer like in deb-systems. RPM is technically better, especially for mobile systems. I wish Debian/Ubuntu fans would see the objective facts without stubbornness.

It is not hard to learn new package system. Mostly they work similarly just having little different option names and switches:
http://wiki.openvz.org/Package_managers
Most people won't even have to learn any other but the GUI package manager and won't need to go to the CLI mode.