Here are some recent videos concerning the Instinct vs iPhone 3G. Points of interest:
Instinct is EXTREMELY COMPETITIVE when compared to the iPhone 3g or otherwise.
Sprint's EVDO Rev-A is superior to the evil empire's (ATT) 3G network.
At the current point in the timeline/lifespan of the Instinct and the iPhone, the Instinct is further ahead and superior to the iPhone.
The Instinct's current U/I, Browser and O/S needs a LOT OF WORK...and those are the places where the Instinct should be able to make up some ground, if it were to try and catch the iPhone in terms of performance.
FOR THOSE THAT ARE CONTEMPLATING ON JUMPING ON THE APPLE FANBOY BANDWAGON...consider this...The iPhone has been out for over a year, a year for further development and refinement, a year for 3rd party apps to be written, a year for bugs to be worked out, a year to get into YOUR heads and set a standard.
Edit: Here are the links...
http://www.phonedog.com/cell-phone-research/blog/instinct-vs-iphone-3g-speed-test.aspxhttp://www.phonedog.com/cell-phone-videos/instinct-vs-iphone-3g-web-and-speed-test.aspxhttp://www.phonedog.com/cell-phone-videos/instinct-vs-iphone-3g-vs-dare-vs-treo-800w-speed-test.aspx