The very cool Eye-Fi wireless memory card is now available (at least to those in the US). With 2Gb of RAM for photos, and a WiFi card built in you can upload photos directly to your Mac or PC (I believe it was demoed at WWDC uploading into iPhoto directly). Or you can upload to the Eye-Fi service and into your favourite photo site (Flickr, Photobucket, Picasa, Facebook, etc.)