Photographic 'Apps'

Just bought a Ipod Touch. Can anyone recommend any useful photographic 'Apps'.
Thank you.

There are several depth of field apps that are worth getting. The one I have is by essence computing I think - it's quite sophisticated and includes a graphic representation and lots of settings - and I've just added a new exposure calculator to it.

You can also get a Flickr app.

.....and loads of others which, if you're like me, you'll download and never use!

I also find the met office weather forecasting useful along with an app called windguru which is aimed at kite surfers but has a useful indication of forecast cloud cover too.

Enjoy!
Martyn

perhaps not an app but what about the SD Adapter. You plug it in, insert the card from your camera and you immediately download the photos to the ipod - this gives you an easy to use back-up device on e.g. holiday trips but you can also use the nice display to better watch your photos already when shooting them (in case, you have no laptop nearby) and if you are near a hotspot, you can also post them to FLICKR, facebook or whereever you want to share your pics.....
I use this little device together with my iPad and it really helps when I do photo shootings

Thanks. Just the type of things I am looking for. Any other suggestions will be very welcome.