What is the best medium for sending feature requests? Both for Ubuntu as a whole and individual (supported) apps?
For individual apps, the best way is filing a bug requests or feature request in the individual applications.
Some upstream development portals might be having explicit feature for asking user ideas but most of them use their bug tracker for that.
Example, you want a new feature in
Or before filing bugs for wishlist, you might want to talk to the devs of the particular application. You can look at their mailing list or IRC channel.
For Ubuntu, as Octavian mentioned Brainstorm was supposed to be a good platform, but sadly most of the ideas were neglected and it was closed now.
Recently Canonical CTO Matt Zimmerman mentioned that
You can make a feature suggest by submitting it as a "bug" at bugs.launchpad.net/ubuntu.
Mark the bug with the tag
These types of bugs unfortunately are not usually given a high priority so you may have more luck trying to approach the upstream developers.
The Link to actually file a bug "Report a bug" in the top right corner leads to a page, where there is no possibility to file a bug. It explains that this is only possible now at the console if you type
into the console and follow the instructions.