The work on a small Pharo Kernel continues:
As said, the PharoCore was great for deployment because it was small. However, Pavel Krivanek was not satisfied, and hence started to work on “KernelImage”. The image is now known as PharoKernel. Such image contains a real small core and it is only about 2 MB. The image has to run headless. Can you imagine Seaside running in 4.6 MB? Just try Seaside on PharoKernel.
Read the rest - they have moved on to using Fuel as a package loader so as to to have a kernel that doesn't even require the compiler.