New from Apple is Digital Camera RAW Compatibility Update 3.9, which adds compatibility with several new cameras to Aperture 3 and iPhoto ’11. The newly supported cameras include the Canon PowerShot S100; Nikon 1 J1, 1 V1, and Coolpix P7100; Olympus PEN E-PL1, PEN E-PL3, and PEN E-PM1; Panasonic Lumix DMC-FZ150; and Sony Alpha NEX-5N, Alpha SLT-A65, and Alpha SLT-A77. The update applies to both Mac OS X 10.7 Lion and 10.6 Snow Leopard; Apple publishes a full list of supported raw image formats in both Lion and Snow Leopard — interestingly, the Lion list is a bit longer. (Free, 7.2 MB)
Removing Photos from iPhoto
Despite iPhoto's long history, many people continue to be confused about exactly what happens when you delete a photo. There are three possibilities.
If you delete a photo from an album, book, card, calendar, or saved slideshow, the photo is merely removed from that item and remains generally available in your iPhoto library.
If, however, you delete a photo while in Events or Photos view, that act moves the photo to iPhoto's Trash. It's still available, but...
If you then empty iPhoto's Trash, all photos in it will be deleted from the iPhoto library and from your hard disk.