There are a large number of apps that have been developed specifically for the mobile phone camera and there are some amazing photos taken and edited using only the phone. Just for interest, here is a Flickr site showing before and after shots of photos taken and edited using only an iPhone - amazing what can be done.
I downloaded the hipstamatic app and the scratchcam app and had a play around with them for the day's photo, however I must admit, I did end up doing the final editing in Lightroom. Unfortunately it was quite late in the day when I started taking shots with the camera so the light wasn't very favourable. On the upside I now know there are a lot of cool effects I can play around with - not sure if that's a good thing or not!
For the photo of the day I took a photo of a mobile that my daughter and son-in-law brought back for us after one of their hikes in Nepal.