smaller, more crisp graphics to give a cleaner more elegant look.
has anyone seen the artwork for linuxmint? its very nice looking, maybe something along those lines.
build sabayon with the assumption of a hardware accelerated computing platform with higher end systems. There are a boatload of linux distrobutions made for lower end and barebone machines, sabayon should be a little bit more demanding but deliver alot more in return (especially aesthetically).
A graphical installer client for all programs, a stand-alone from portage enabled to run binaries to extract, compile, install.
Other than that, nothing... keep up the great work guys on this awesome linux distro