is there a small app that will give me a current OS grid?

[EvilTwin]

Hopefully today my ipaq 2410 and TTN3 will arrive, i anticipate using tomtom to find my way about, but i was wondering if theres an aplication that will give the kind of data i'd expect from a 'normal' GPS eg: OSgrid, elevation, steer to waypoints etc. mainly for getting position location for things like geo-caching etc.

[MarkHewitt]

Memory Map gives me a National Grid reference even when I don't have any maps loaded for that area. Just checked it on the desktop version, pocket pc version might be the same.

[nigelp]

I think this is exactly what you are after:

http://www.gpstuner.com/

let you set waypoints and then shows distance from them and heading to take.

We see you’re using an ad-blocker. We’re fine with that and won’t stop you visiting the site.
Have you considered making a donation towards website running costs?.
Or you could disable your ad-blocker for this site. We think you’ll find our adverts are not overbearing!