>Yes, ETA would be useful - but how to do
>it?

>you'd need full details of the vehicle's
>capabilities, driver's style, route with
>likely speeds, realtime traffic info, etc,
>etc.

>I think you should provide both ETA and
>TTA (time til arrival) - or at least a
>switch so the user could choose as they
>saw fit.

Aouch!!!
ETA sounds a lot more difficult than i thought it would be...
I think i should just try TTA which is just a simple division of distance to go with the current speed, so that i can have a statistical value. Unfortunately i don't have all summer to finish my project. I need to produce something that works and so far i have finished more than 60% of it.

Thanks Andy!