Over the years I accumulated many, many text-editors 1 and Twitter clients (more than I would admit to) and my habit of collecting tools continues with App.net clients.
Zephyr has all the features than I need and features a light and clean design. I will put this in my dock for a while and give it a fair shot.
Actually I haven't purchased any in the recent past. Nebulous Notes is still the best one for me at the moment. ↩