Instagram makes it easy to put your photos on a bunch of sites at once, but it also makes it easy to apply filters and make your photos look like old Polaroids.
Or ass, depending on how you look at it:
Why the fuck do you need your digital photos to look vintage? You are not decorating the set of some 1970s version of Mad Men. You are not fooling anybody into thinking you are taking polaroids and scanning them before uploading them to twitter. People take these fucking faux-vintage shots of current events, things that happened five minutes ago.
I haven’t tried Instagram yet, but I also wonder why people need to have more than one place to put their photos. My process for photos on the go with Twitterrific is to use Gdzilla to send all my photos to Flickr. I’d much rather have a direct upload to Flickr though.