I was considering doing that (using piston might be a good way to go about it), but decided not to at this point as I have other things I'm working on and the quick off site linking plugin I wrote does everything I need.

There are some great posts out there on pulling data ( see @xeroc @jesta @fabien and @lukestokes and various others) and I know at some point I saw some good information on posting to the block chain as well.

Once I wrap up a few of the things I'm working on I'll probably take a look at this some more.