iPad app for organizing, rating, and noting photos I've imported a bunch of my photos from Lightroom (not directly of course) to use my iPad as a scrap book. So that I can look at them, and decide whether they belong in a series or should be included in my portofio.

Currently I'm doing this by e-mailing myself each photo with some notes and thoughts.

Is there an app where I can view my photos, and put notes against them. And ideally also organize them into groups where I feel they work together?

thanks

Update

I should have noted this before. It needs to be an offline solution. Although I e-mail myself, I compose the e-mails offline as it's not so important when the notes get to me, but rather that I am writing them whenever i want, while looking through the photos.

cheers
You can create yourself a Flickr account and upload your pictures to Flickr (as you are already sending the pictures via mail, it should not be an issue). 

On Flickr, you will be able to put your pictures as favorite or not, put description, comments, keywords.
You can arrange them in Sets and Collections and also keep them private so no-one can see them, unless you decide otherwise.  

You have app for this on iPad/iPhone, as well as the website on the Mac or the numerous exiting applications on Mac interfacing with Flickr (Lightroom is also one of them).

The drawback is the limits existing in the free version, but depending on your usage, it could be OK for you.