This is great news from me, as finding out the mighty:
I think that Sabayon only needs some user friendly system admininstrations and recovery tools,
sometimes using bash can be frightnening for some users, one should be able to choose
to use it or not, in my opinion.
Maybe also some README that explains out of the box the features and suggested usage of Entropy and Portage,
it could be wise to put it just in the installation process: while formatting and installing the system, there could be
some screenshots but some messages also, that explains what the user is installing, not only visually, but also feature-wise.
In many reviews that I seen in the internet, the reviewer was surprised when "he found out" about Sabayon features,
it could be wise to show them off immediatly, in my opinion.