I installed ubuntu 13.04 server with virtual-kernel option inside of virtualbox to try it out. It does seem to be working faster then the regular image. But there is one problem. The terminal has just 16 colors and I really like solarized theme in vim. Not to mention fish shell that also supports 256 colors.
I played with settings inside of grub.cfg, and I noticed that not all resolution work and no matter which color pallet I chose in there, there are always just 16 color. Which I tested by running colortest-256 utility found in the repo.
Is this a limitation of virtual-kernel image I chose when installing? can I overcome it somehow? maybe by installing some packages?