Make the installer be able to use the CD as well as being able to download via the internet. Also let the user choose what version of Ubuntu they want to install, from Hoary to Feisty beta.
With this the installer will have everything I will need for a long time.
It is planned but not for a near future.
For now we can't afford using any other version than feisty, as it will give us too much trouble to support.
For the CD you don't need to re-download it.
If you allready have it, just plut wubi.exe and the iso file in the same folder. Wubi will detect it, check it and use it.