The name of the layout engine is properly spelled Boxely.
The following tables compare general and technical information for a number of layout engines.
NetSurf is an open source web browser which has its own layout engine.
The name of the layout engine is properly spelled Foley Park.
Version 11 comes with a new version of Opera's layout engine.
At least one more major revision of Netscape was expected to be released with the old layout engine before the switch.
An alternative layout engine, kwebkitpart, is available from the Extragear.
For a more complete table see Gecko (layout engine).
So Apple started out with a great development team and a small, manageable layout engine that was just ripe for improvements.
In practice, results vary because of the complicated interplay between fonts and layout engines.