Although this would definitely be nice I'm not sure whether it's that easy. As BSP is open source essentially everyone can create an own Linux flavor. There are flavors of Yocto (uclibc, eglibc, eglibc + uclibc), there is a Debian I heard about. Probably other distros WIP.
Totally agree with you but still it would make sense that both BSP as VMware or Virtual-box image and something like NOOBS ( Raspberry Pi ) for microSD would be available
We have Other Galileo Resources, It includes some links that we have seen on the community. I can also add new links to the list, if anyone wants to add links to the page feel free to send me a message.