(oops, I had no idea that hitting Reply would bury my post in the middle of a long thread where no one would see it. "bump"-ing it to the bottom.)
Peter, yes, delete with just a swipe is the behavior that is a choice allowed with the current Touchdown... Venus requires a swipe, then hit delete (essentially enforcing a click to confirm, even if confirm deletes is OFF).
One swipe delete should obviously be an option .. and is in TD now. in Venus, if you select confirm deletes, you must do THREE actions (swipe, then select delete, and select confirm)
I just wanted to offer the feedback that I think the right answer is to think a little outside-the-box, or rather to adopt the mobile application mindset rather than desktop. In mobile applications, we worry a lot about confirmation because buttons are small and people make mistakes. But slowing down the UI in the critical path is really annoying for power users.
The answer is to offer an UNDO button. That is, don't confirm deletes, but instead defer them (by 5 seconds or a minute or until the next action or whatever) and offer an undo button that lets the user cancel a mistaken delete.
Ideally this covers everybody -- it makes the people who used to use delete confirmation happy because they get the same thing as before, only opt-out of deletion instead of opt-in, and it should speed up their workflows.
And the people who went without deletion confirmation are happy too because their experience is unchanged (ok, they see an extra button!), and also if they had turned off deletion confirmation because of speed, now they have the chance to fix their errors without a performance penalty.
Best of both worlds!
p.s.: I offered this suggestion to touchdown-support in Sept. 2014, but hopefully I won't get in trouble for being duplicative :)