I heard good things about the Cosmonaut
http://www.studioneat.com/products/cosmonaut
has anyone tried it with an anit-glare screen (power support), if so how's the responsiveness?
I tried it with an anti-glare screen cover which is not power support, but that shouldn't make a difference in this feedback. If you want to do a lot of stylus work on an iPad, IMO remove the screen cover as the glass provides the best surface for writing/drawing.
The Cosmonaut is designed with an air pocket between the outer rubber and the actual capacitive part, which provides some give/slack/breathing room from the moment you touch the tip to the screen to the moment it starts to write. That delay means that the Cosmonaut is going to work best for coarser/broader motions than a stylus without that delay. I suspect this will mean fewer words per page of notes, and sloppier drawings than with other kinds of stylus.
Here's a positive review of it:
http://www.marco.org/2011/12/12/the-cosmonaut-stylus-review
I do like the heft of it and the feel in my hand, but I'm not sold on the air pocket design.
FWIW, also check out the Hard Candy stylus/pen as an alternative. I've used that, a no-name mini stylus (and FWIW the Nomad Brush capacitive paintbrush) on my iPad as well as the Cosmonaut. I don't think I've found a found a perfect stylus yet. In part the problem lies with the iPad 2 -- it struggles to keep up with this kind of continuous touch input, which breaks the interactive feedback loop and feels wrong.
