I will forward your query to the Mat - iyou could alwayss use the contact button when you have a question like this- it goes to Mat.

Nope, not as far as I know. No plans to do so either, unless there's loads of demand for it.

You might be able to do something using rss or feedburner or similar. Can't be sure though, I don't use Instagram myself.

Sorry about that.

Does instagram not allow you to save images local.? Then you have a copy to share on other sites like moblog thats how I do it, I make these in picplz and other photo app sites then post a copy to here http://moblog.net/coloursplash/ the ability of the share button on my moblog beats any app/share button which usually gives you only 3places to share to.

I'd love to start looking at more social integrations in the long run. Facebook comments on moblog could work pretty well too.