[tikhonj]

Eh, .deb may as well be a "universal"--I have not found any packages online that were packaged for Linux without a .deb file. They always either have a .deb or only provide the source for Linux users. Now, they sometimes don't even have an .rpm file, which is a little annoying on Fedora, but that's a different story. And, of course, they almost never have any other packages, but that's only to be expected--anybody using a non-deb, non-rpm distro can very probably fend for themselves. And, these days, I think only a small minority of new users choose distros other than Ubuntu, so supporting .rpm files is also less important.

Also, is installing a file at the same time as doing an update really a big feature? I've never even wanted it on Linux and I don't think I ever used it on Windows either.