Good start but needs more work

I like the overall functionality and hoping for continued development and improvements.

Not very accurate, speed varies wildly, in fact my speed graph peaks at 113 mph. Other GPS programs on the iPhone must have a better smoothing or filtering algorethm. For example
Path Tracker is much more accurate, so the problem is not with the iPhone as others have eluded to.

Another problem is the quirky interface. The start/stop buttons do not reflect the current status if you go to the location screen and return to the main screen. Also does not resume correctly after interruption.

Looking forward to the next version.

seadoodude about iTrail