I'm happy to announce that last week I-build (I20081014) features reworked p2 workflows. It is currently work in progress and more will be done in 3.5.
What is particularly interesting with this effort, is that it is the result of feedback directly gathered from the community through bugs, definition of personas , and meeting with the eclipse UI workgroup . A truly open process and interesting way to design a UI with people from all backgrounds with diametrically opposite ideas on how it should look.
It's not too late to contribute ideas for the evolution of the workflows in 3.5 As usual, any feedback can be given through bugzilla (RT > equinox > p2, be careful we moved), or on the p2-dev mailling list.
Reworked p2 workflows.