While this stylus looks a bit awkward with its overly thick shaft, it might just be ideal for business use.
The Cosmonaut stylus for touchscreens
http://www.marco.org/2011/12/12/the-cosmonaut-stylus-review
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I just reviewed Estylo from plai on
http://graphicssoft.about.com/u/reviews/iphoneandipodtouchapps/Stylus-Reviews/Plai-Estylo.htm
Estylo is really the most precise and accurate stylus for iPad I have ever seen.Second choice is Adonit Jot,although Estylo is ultimate stylus choice till now.Estylo is available at http://plai.tv/
When using Estylo u write with angles,with corners rather than with a rubbery ball like tip,this makes Estylo unique.
NOTE:Estylo is good only for sketching,not recommended for writing or note taking!