Photoshop Elements 4 has new features like custom slideshows, automatic red-eye removal, online photo albums, realistic skin tone adjustments, instantly finding photos that contain faces for easy tagging, simplified online print ordering, TV slideshows via home network or VCD burning and easy object separation.
I have been looking around for easy to use and powerful photo organizing and editing software. Photo Mechanic did not impress me. I guess I am to much accustomed to Photoshop to like BibblePro workflow. Gimp is just unusable for me. I am using maybe 1% of Photoshop features so it's too heavy for me. It looks like if Picasa upgrades it's photo editing capabilities it would be right software for me. And I would appreciate Linux version ;-)