If you have an iPhone, or an iPod Touch with Wifi, you can try out the new version of mindat designed for your device.
Go to
[
www.mindat.org]
If you choose the + icon at the bottom and do 'Add to Home Page' you'll even get a fancy icon for it.
Please have a go and let me know what you think.
It might work on other smartphones etc, but I haven't tried it - if you have success with it then reply here!
Jolyon