In the beginning, there were 3 front ends (FE's): mac, windows, unix. Each took a suite of developers to maintain. Adding a new feature (even just a button) required 3 engineers to waste at least a day (more often a week) slaving away until the feature was complete. This had to change.
What if we could be in a world where we could just write the code once? Where non-programmers could design the look and feel of a product using W3C standards instead of C++? Where platform differences could be expressed in stylesheets, not hardcoded with #ifdefs?
Do you like that world? So do we.