Lightroom from Adobe has to be the most fantastic invention since long life milk! It give you the power to improve your image, add filters, work on colours and do 90% of the stuff that you used to do in Photoshop. It also works as an archiving system allowing you to add keywords, captions and search right across all of the images in your library. Shooting in RAW has never been easier.
The Adobe Lighroom 4 book for digital photographers by Scott Kelby is an excellent – but heavy – resource if you are planning to take it into the field. Alternatively download some of the fantastic resources that are available your ipad or computer and watch them on the plane.
My top videos is . Julieanne Kost. The Adobe evangelist. http://www.jkost.com/ Really good.
Also for an ipad look at Lightroom 4 retouching LR Crash. Lightroom 4 Quickstart, and Welcome to Lightroom 4.
Really good content.