Have any of you guys tried the new Ubuntu Quickly tool
What it basically does is provide a template to "quickly" build pygtk applications for the ubuntu (and eventually linux) platform.
It also provides a designer (Glade) as well as source control and packaging.
Some more info about it is here.
http://developer.ubuntu.com/
What i basically like is that, although they didn't create a full pledged ide, they still managed to create a tool that will allow you to create, design, edit, and publish ubuntu applications. They also make it easier to add applications to their app store, so they're not only targeting open source developers.
Don't know how it would turn out, but this surely looks promising to me..