> What's the general conscensus on these modules then? I'm keen not to miss
> out ;) but if they are unreliable.....

        The ones I have are reliable.

> So the general idea is
> 1) they need an unrestricted view of the sky

        As with any GPS unit, they will tolerate some obstruction but you can
forget about getting good fixes all the time say at the heart of downtown
Toronto.

> 2) you have to leave them for a while to get a fix on the
> satellites- 5mins?
> 10 mins? longer?

        About 5 minutes, and only after a total power failure, if the battery
backup is maintained they reaquire quicker.

> 3) ???
>
> I'd like to fix one in my new kit car but if the LCD is going to display
> "please wait" most of the time I'll make something else instead....

        As long as you don't remove all power from them they come back with 5
minutes, often quicker. TTYL

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