[criddell]

> Cross platform integrations

Even just on Linux, there are multiple platforms. The big ones are KDE and Gnome. If you want to write the best possible native Linux application, you have to pick one of these and right off the bat you are losing about half of the potential Linux desktops.

I wish KDE and Gnome would merge. I don't really care which one would dominate because (IMHO) they are both excellent. Both give me icons I can double click on to launch an application and that's most of what I need from my desktop environment.

[tmtvl]

Both Firefox and Chrome use GTK under GNU/Linux, the KDE team has invested a lot of effort in keeping GTK as well supported as you could hope for. Using GTK is fine, though of course Qt allows you to ship a single application to not only Windows, GNU/Linux, and Mac, but with some tweaking Android as well.