If you're a novice to photography or need to do your editing in a simple package on the move, then MobaPhoto may well be for you.
MobaPhoto encompasses everything from simple size reductions and contrast adjustments to uploading them to a website. In addition, it's got a very useful batch photo editing mode which allows you to change and edit several photos at once in various ways. This includes resize, crop, correct red-eyes and upload them with no FTP knowledge required. While this makes it very limited, it's excellent for beginners because it's so easy to use and lacks all the intimidating functions of your average imaging application. What's even more useful, especially for those on the move, is that it fits on a USB stick and requires no prior installation - just click and go. One problem you might find however is that although it supports most of the major image formats, all your changes are saved in JPG format which can be a bit annoying unless you use an image converter in conjunction with MobaPhoto - hopefully that's something they will add to future versions.
Extremely lightweight, easy to use and feature rich, MobaPhoto is an excellent addition for photographers on the move.