I haven't given up on the instant photography movement, but I'm liking the blend of analog and digital photography that the Polaroid Z340 ($300) brings to the table. The Z340 brings together the old and new thanks to its ability to capture and instantly print images on Zink film that is smudge-proof, water- and tear-resistant, and needs zero dry time (say bye bye to "shaking it like a Polaroid picture"). It also boasts modern features, like capturing 14MP images, an SD card tray so you can store and print, or upload your pics later (or even print pics from other cameras), an LCD screen viewfinder, and the ability to print your pics with or without the classic Polaroid border. The Zink film itself runs at about $18 for 30 exposures, which isn't cheap, but will still cost less than The Impossible Project's film for your Polaroid 600.
Get a closer look at the Z340 in the gallery, then head over to Photojojo to get one for yourself!