Picasa and iPhoto have virtually made other photo management apps on the Mac redundant but if you look hard, you'll still find some nice alternatives.
JetPhoto Studio doesn't really compare with the big boys but it does offer a greater degree of control and processing power over your images in certain areas. JetPhoto Studio will import pictures from your camera as soon as you connect it. Alternatively, you can browse to albums on your Mac or allow JetPhotoStudio to perform a full scan of your system.
The main interface is well presented and allows you to browse photos by date. There is a set of basic editing tools which allows you to crop images and add a few effects such as sepia, black and white, image contrast, and auto enhancing. You can also batch resize your photos and protect them with a watermark. JetPhoto Studio also enables you to rate your own photos via a star system, as well as tag them. However, tags are not transferable from one album to another and you have to create a new one every new album you create.
One of the better aspects of JetPhoto Studio is the ability to create screensavers, wallpapers, slide-shows and Flash movies from your collections. Unfortunately, however, there ¡s very little control over the types of animations and speed of the transitions. Finally, it's worth adding that you send JetPhoto Studio images via SMS or infrared, to your friends’ mobiles, although this only works within the US. The developer has also recently added geo-tagging for GPS recognition in Google Earth. The best way to share your photos in online though and JetPhoto Studio makes this relatively easy via Flickr or the JetPhoto server.
Jet Photo Studio is a comprehensive photo management tool that's a bit bloated in areas but offers some interesting features.